Porting 317 heads for boost. 660 spring kit - $299 BTR .

Porting 317 heads for boost Options. Really don't think I need that level head either. 98 1. 0L (if there is a price on that iron headed 6. Porting cylinder heads has long been a right of passage for serious hot rodders looking to add power on a modest budget. This head will change the industry. On the other hand, the 243 heads excel in naturally aspirated builds, delivering Equipped with the 317 heads, the combination produced a peak of 7. Engine is 9. Less pressure drop = more efficient turbo = more Hp. 3 engine? They are 1. $450. ports heads for sure, but I just feel the ovals are more suited for my street application at this point. 317 LS1/LS2/LS6 Stage 2 Porting Service (SET) quantity. 5 tall, CPP C5/6 spindles, Ridetech coilovers, C5/6 I plan on building a 5. This will have a turbo and a decent size turbo cam. The 243 heads are a perfect choice if you desire to carry out a porting job. Ray Best pass 8. Save Share 540 BBC + 15psi Boost via Single Garrett GTX Not many people mess with porting LS1 heads anymore. That's what I did, had a pretty rowdy l33 with 243s, swapped to the 6. 8 Litre Truck 1999+ LM4 /LM7 5. 3 truck heads (casting #862 and 706) are also a very popular base casting for porting/modifying, due to their even smaller (61. 6 psi, Run with the LS3 heads, the boost curve peaked at 7. I think the best path to your goal would be to find a slightly later 6. NEW TSP WARTHOG CAMS - CHECK THEM OUT NOW. 5 thickness the L92s are about . 5@128 in the 1/8th and 8. 15 years of porting cylinder heads for the most powerful ProStock®, TopFuel® and NHRA® engines taught us a lot. LQ9, nnbs intake, edelbrock 90mm TB, LT headers true dual X-pipe dumped, msd wires, EFans, spectre cai, Performabuilt Rock Crawler trans, motive 456, Detroit trutrac, I don't want to get into crazy head or intake work, just want to wake up the engine with the cam. 625" valve. 0 Wondering if anyone used any promaxx 317 yet. 0L LQ4 LQ9 317 Cylinder Heads, Customer Supplied Bare Casting. Chrysler Applications Racer 440-EZ CNC-295 Just by CNC porting your 5. Truly not worth the effort. of boost, it will effect 4v deferent than 2v head. Minimal change in gas mileage. I have Texas Speed stage 2. Save. The 6. The cathedral-roof shape at the LSA heads with the intake wing removed and perhaps a little porting on the exhaust side, those will be my next heads once I'm tired of these L92s. Put this head on a 392" Engine and make 500 HP. 0L 317 Aluminum Cylinder Head CNC Porting Service ( Customer Supplied Bare Heads ) CNC Ported LS 6. in Allen Park, MI. If you’re going to add boost, then consider the 799 heads to drop the L76, and L77. I forget what its called but I've read bout people machining an o-ring type lip on the block/head to provide a better seal against the gaskets keeping the heads from lifting as easily. 0L with the 317 aluminum heads, and save yourself the trouble (and extra parts) of doing a head swap on your currently eyed 6. 3 heads milled down to 62cc chambers right now and would rather not run 11. General engine tech -- Drag Racing to Circle Track. Key things to be sure of, not everyone knows cams, cheap intercoolers will kill power. i set it up for 8 to 9 lbs boost,the 320 heads had no port work done to them. LS 706 vs. But the porting shouldn't be going anywhere without the correct PIN. The 862 is better in mixture motion and port velocity. North Carolina–based Advanced Inductions is widely known for CNC head porting, with programs for the Gen II, III, and IV small Transform your LS factory heads with our precision "Factory LS Head Machine (CNC Porting only)" service. SKU: KAT-M3835. Add to cart. 3 and the first thing I notice is that it looks like the heads were leaking. Top $ LS Heads For Boost. Maybe you should find someone that can. I originally planned on doin a custom cam for my setup and possibly porting my 243's. i know that the power is in the different heads, but this car holds some sentimental value to me and i would like to keep her "original" for the most part. Dart 225 heads fully worked by PMFL, FTI StreetSweeper cam 236/240 . 8 compression, 238/248/578/608/109 hyd roller, GM 049 oval port heads, Performer RPM air gap Promaxx 317 BBC head for 496 build. SKU: 114010, 114012 Category: Advanced Porting Services Tag: advanced cylinder head porting services. 799 are the same as 243 Heads which will add compression and keep flow. 600" range, and mill the heads With this in mind, when setting out to make the most powerful Inline LS head on the market, we took an unconventional approach. If I was a 540 or 572, then rec. I have some solid bushing trunnion stock rockers I may sell with it This article will provide valuable information about the 317 cylinder head and related details you need to know. I am shooting for 9-9. Basic performance to race ported. 3 Heads most refer to are the 862 Heads from the Gen III 5. Will these spare 317 heads swap right on to the LY6 so I can hang on to the 823’s and intake? I also have a cathedral port intake I can swap right in. 6@159 in the 1/4 with a ported 317 head @ 3350lbs with just normal arp head studs and a cometic gasket. 87 at 150. 610 . My goal is to have 350hp at the wheels. A few new tools and a little knowledge can score big with performance heads. So changing the camshaft will be more Milled 317 heads on n/a ls1? I was in the midst of installing my lpe GT2-3 cam on my 04 when I found out my head gaskets were blown, luckily the engine was halfway apart anyway so I pulled the heads. 0 for boost and was wondering how much porting the 317 heads would help with 20psi of boost. I got a killer deal on some TFS heads and going to have them ported for a NA build. Used to be cheaper, but then the word got out and GM upped the prices by about 70%. The LQ4 engine, also known as the Vortec 6000, is a 6. I am currently building an 05 LQ9 6. Thought about looking for some 243 or 317 heads but everybody thinks they are gold around here. 7 gasket on a 5. The 317s did differ from the 243s in that they featured much larger (and less More 317 head porting! Just a quick video update on the I’m putting in to get this old truck motor into the 8s down the 1320! 317 Heads. 125 Bore Fixture , but Customer came get them 1 Day sooner than expected Also , i used a medium rough carbide finish, instead of very rough as my best super-rough Carbide Burr broke the Oval Egg Head off before i could finish Porting the Heads . Facebook; Twitter; Instagram; Google+; My Account; Select Stage and Head Castings you will be Sending for Porting. com CNC# Engine Int Vol Ex Vol Chamber cc Flow C. 75 thick decking. Brian Tooley Racing offers many complete, ready to bolt on cylinder head options for your LS engine! The store will not work correctly in the case when cookies are disabled. Stage 2. Interestingly all heads (except the Livernois Stage 3 GT500 head) converge on 330 CFM at 0. 5:1, which works better with the planned cam upgrade. C5 Forced Induction/Nitrous - Stock 241s or 317 heads for boost? - Which ones for around 550 rwhp on a stock bottom end? I can get a set of 241s for free or pony up $150-$200 for the 317s. Well Head porting on some PI 2v heads, figured I'd share (my first time and it's WIP but if I'm screwing up lemme know) Ford Share If that's your goal, I think you will need a lot more head, cam, and boost. 0L variants, We find out which factory LS head works best under boost in this back-to-back test of the 706 heads vs. After that will be supercharger time. If your needs were higher rpm, I would suggest a 317/035 or 243/799. 370ci with 317 head makes a good turbo setup too. The cam was teamed with a set of Stage 2 317 heads from Total Engine Airflow. com 398ci LS, TKX, QP 9 inch, Strange pro iron case, strange 35 spline axles, Spc front upper control arms, UMI front lower control arms, Howe ball joints, upper +. main and head studs from someone like Late Model Engines that only builds LS stuff will be money well spent with either port Oe heads pick your style or . Brian Tooley is about the only one that comes to my mind. 0 for awhile with 243s then swapped to 317s when I went turbo. Essentially, they have the same ports as the 243/799, but a bigger combustion chamber. 8:1 compression FAST 90 intake and TB 378 cid Custom cam. 6", 2. And FYI for the ones you didn't mention 5. Ported/polished 243/ls6 heads. An added By porting the heads you can decrease the pressure drop through the heads. Armed with the right knowledge, the correct tools, and a couple of nights With the stock 317 heads and stock dished pistons, CR is about 9. Is there added benefit or risk either of the two options? Thanks in advance. 02 valve in them with some port work. 3 if need be. 243/799 heads are pretty easy to find, but you might prefer the 317 or 035 heads. I POSTED THIS BECAUSE I HAVE SEEN A In terms of cylinder heads, we included the 706 small-valve 5. Been looking at the difference in the LS heads. They have been tested for results there's info out there. See All What size intake valve can I put in the 862 LS truck heads, going on a 5. 300 valves. just a junkyard LQ4 with small cam" 70 Malibu 2dr 307/powerglide originally, RestoMod in progress. Don't need 7 or 800 horse. If you’d be happy in the 500s or even 600s ported PI heads can get you there with boost. I am trying to keep as much as I can for a Supercharger hopefully in the next few months. $950 243/ 317/ 799 CNC Cylinder Head Porting Service 243/ 317/ 799 CNC Cylinder Head Porting Service Regular price $1,081. i used to run the crap out of that thing every weekend and fixed The price listed is for you sending your cathedral port cylinder heads (4. With untouched 317 casting heads (8. This guide will provide a comprehensive overview of how to port cylinder heads, Curious to see how much power people are making running the 317 heads and how much boost their able to squeeze through them? I currently have a set on my 408 stroker and So far Iv made 733hp @ 13psi. 706 5. Sniper Big Block Chevy 24°, As Cast Conventional Port Heads, 290cc, Va – Profiler Performance . We also offer valve spring upgrades. 500" lift. Username. 0 199-LS1HCPackage-CS Precision Race Components Cathedral Port Heads & Cam Package - Customer Supplied Castings. 8 liter twin turbo setup in my 1983 ltd sleeper wagon build they have a Porting a head is usually one of the basics of building any high perf engine- and can have similar benefits if you are looking for efficiency. You will make the same power with less boost with porting, how much depends on, how good the porting was for your application. Hobbies › Car Engines & Parts. 348ci LS1 engine with ARP head bolts on pump gas. 0 LS could be had with one of six cylinder heads: 317 heads, 243 heads, 799 heads, 821 heads, 823 heads, or 364 heads. But if I was starting with this again and needing heads, I would definitely run either the Flotek 315 or the Promaxx 317's. 3 for boost. Please The porting request would be initiated by Spectrum. We ran the 706/862 Hi everyone, don't forget to hit that LIKE button, SUBSCRIBE and answer the question at the end! We will cover the porting in depth as it happens in future e see problem with L92s is there thin decking. It went 6. 0's. The biggest thing with cylinder heads is watching your transitions, paying attention They are the "the foundation of ANY big power setup is set of good flowing heads" and other is "don't bother porting the heads just let the boost do the work". 0 truck heads (casting #317) are popular The Maxx 317 is truly a rare breed in today’s market. 02" STOCK Variant -here is 7 flowtests I did years ago of a pair of E7TE heads---and one flow test of a more recent GT40 with similar porting for ---Casting number on heads is E7TE --- about $350 porting & valve job---intake valve size is 1. isn't that the answer. Listed a day ago. I've been around two sets of 317 heads that were 'home ported' on boosted 6. 2:1 compression. Save Share LS Cathedral port 317 heads great for boost Lsx Turbo Boost Build Hot rod Project Ls motor Business is great in Boca Raton (Boca Nice) | LS Cathedral port 317 heads great for boost Porting and polishing your NPI heads is more expensive than just buying a set of used PI heads. hotrod. 317 6. imo they needed a bigger blower like a 10. Save Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this procedure: Building 317 heads for boost. Without changing anything except porting the heads you may actually see the boost I have been looking at the 2 Promaxx 290 and 317 heads for my 496. 1 Jul 18, 2022 | 03:46 AM i made sure to do as much head & blower porting as i could to increase airflow capacity / reduce manifold pressure / We also go all the way down to porting sets of GM heads. They also have a higher compression ratio, which helps to increase power. 905" bore 5. Just not sure if there would be an issue with the heads. now what makes the AFRs a great head for boost is they have a . Starting at $2499! Options: 6 bolt - $100 PM guides - $160 (recommended for stock rockers) BTR . Best budget "factory" head in my opinion. They as good or better then the AFR's, yet about 1/2 the cost of AFR. Stock Intake and Exhaust Ports: After cnc porting: Close up of exhaust port: Most important part, Engraving: Service Includes: Precision CNC Porting Customer Supplied This weeks project 317 Ls heads shooting for 500 hp. a stock head is about . 1995 Pontiac T/A, LSX,S475,Glide, The two have gone hand-in-hand, and people have used turbocharging or supercharging to make up for lazy cylinder head porting. While Chevrolet wanted to provide the ZR1 with some serious grunt, they also had to The vast majority of mass produced CNC ported heads have a generic NA port programs. You are welcome to DM me, or just this is a video of how I ported my 317 casting number heads that I am putting on my 4. Also a ls6 cam or custom turbo cam. Jump to Latest That's all I got on the street and I am in no way paying for race fuel or octane boost to throw in each tank of gas. What You’ll Need Before you get started, gather the necessary tools and Since a better flowing intake and heads reduces boost, does that allow you to run a smaller pulley without detonation? Basically I'm asking if detonation is caused by the pressure of air entering the combustion chamber (psi) or the amount of air entering (cfm). The idea was to flow and measure each should every turbo ls motor be running 317 heads? they flow well and drop compression-sounds like a boost head to me! let's talk about the recent video on 31 For enthusiasts looking to optimize 317 heads, porting and milling are common upgrades that can significantly enhance their performance and restore lost the 317 heads offer great flow potential and boost-friendly chambers at a reasonable price. It’s We hit the dyno for a shootout between cathedral and rectangular port heads and how they compare under boost. 685 spring kit - $359 Solid Roller setup -ask for details #sps #spscylinderheads #spshaymakers #spshaymaker #haymakerheads #ls3 #ls9 #lsa #lsx #boost #turbo #supercharged #zr1 #zl1 Generation III Internal Engine - 706 Heads Rule?! (706 vs 241 vs 317 vs 799/243) LS9 is used for boost bc it has more layers then a standard MLS. 0L truck), and 799 (as a stand-in for the hallowed 243) heads. 02/1. Sure the compression will be bumped, but porting will make more of a power difference. 4 psi and fell to 6. If you’re looking to get the most out of your small engine, this guide will cover essential techniques and tips for successful head porting. Some bowl blending and mild porting with a head porting kit will really wake up a set of 706s as well. One thing was certain, flow data is not the Valve bowl porting is a smart way for shops to boost power and profits. E85 Car makes 1026 rwhp at 17#s boost 10. 89 right now and I was wondering if it would be worth putting a 2. The Gen3 head flow is nearly the same as the GT350 OEM CNC ported heads. C5 Forced Induction/Nitrous - Who's running 317 heads w/ boost? Just trying to find some info to see if porting the heads on a supercharged set up is worth the effort or not. Aftermarket Heads Advanced Induction. they say up to 15lbs heads seal fine without any question. 1 on E85 is no problem so you could use the TF heads. PRC CNC Porting/Machining Service Includes: The Boost Monster features CHE mag-bronze valve guides and Inconel exhaust valves for the increased heat. I searched a million times and get a million different opinions. 5 will include aftermarket 2. If I ever end up pulling the head I'll jump on porting with a carbide bit. Small Intake Valves on them so there's the trade off. The 317 and 035 are the heads used on all LQ9, and aluminum headed LQ4 engines. If you’re looking to boost the performance of your LQ4 engine with 317 heads, understanding the intricacies of this powerful combination is key. 317 Heads were worked by texas speed with 2. 862 heads: May require CNC porting to enhance air and fuel flow for increased horsepower. Sale: $499. 8s if I could find them for not much more but only worth 4-5 hp to the tire in their mind. The most efficient LS3 cylinder heads on the market, the Haymaker. 5:1), LS6/LQ4 317 head porting questions. And for us guys NORTH or the boarder, those AFR LS6/LQ4 317 head porting questions. Our stage 1 porting service will include the re-use of the stock vales. 0L truck engines (aluminum) CNC Porting. ) Stage 317: Found on 2001+ 6. Thank you for the photos I'll save those in my So the price of a valvetrain kit on top of the price to get thoes heads cleaned and checked out with new valveseats ill be well over the price of the ls1 heads. They can also improve the horsepower and torque of LS engines like the common 5. We 862 heads do offer some benefits over stock cylinder heads, such as being more durable and less prone to cracking. By reshaping and enlarging these ports, you can improve engine efficiency, increase power output, and enhance fuel economy. Look into installing the Bullitt or Mach1 induction style system. 317 Katech CNC Porting LS2/LS6/Truck 243, 799, 317, 035 Cylinder Heads (PAIR) In Stock (0) Reviews: Write first review. For your needs, the 862 can work when supported with the proper pistons (compression ratio) and cam. You’ll be able to make more with TFS heads if you port them. Not sure which But if your cylinder head porter can't port a smooth transition or a straight gasket match. . Independent flow bench testing shows over 400 cfm with 2. I'm open to suggestions The OEM LS3, 480hp is an LS3 with the Hotcam, and the 525hp crate is a production LS3 with the ASA raceing cam. Will probably do a little porting. Better money spent to go aftermarket? On another forum cstraub did good review on them said they wasn't junk but not quite AFR level. If the 706, 243, or the later 799 is the go-to head for any engine, the 317 is just right behind. is it worth having these ported and polished by a local shop and If your vehicle has an LQ4 engine with 317 heads, then you should immediately jettison the original camshaft because the original camshaft is small and affects the engine’s performance. 95. Details. might take Chevrolet LS Aluminum Head, 317 Casting. The 317 heads featured ports that all but duplicated the LS2 243 heads, meaning they were cream of the cathedral-port crop in terms of airflow. LS7, 280 cc. The Livernois I agree with you Adger, I too think to go conservative and not go too big. 317 LS1/LS2/LS6 Stage 1 Porting Service (SET) quantity. Jump to Latest I see turbo ls motors running ls6 intake and ls6 heads alot. promaxx 317 heads. Additional information FED specializes in high OBO These are 317 heads polished and ported 68cc done by modern . 0 to replace the 5. (1. 3 Litre Truck Material: Aluminimum Casting Number 317 Head: 2001+ LQ4 6. 243 (ls6 @64cc), 799 (ls2 @64cc and 317's (lq heads @72cc) have the same port design. 86@205 pushing under a quart of water per run! We have so Fully ported 317 heads, boost ready! Ported & polished iron headsPolished ported heads mbworld Heads ported mbworldPorted and polished 799 heads. 212 60'. Reviews. Skip to content US 651-280 C5 Tech - Rebuild LS1 Heads or buy a different Set? - I suspect a possible bent Valve. 660 springs, heavy exhaust porting for boost, softened chambers, not decked. 57 stainless steel valves. 45 thick. As KellTrac has pointed out the 18+ 5. 50 gears - Boxed and powder coated frame. This is my first LS build. Reasonable for me being in the 18-20psi range. Since the 317 truck heads share the same ports as the performance-oriented 243 castings, the results of the porting were impressive. The 5. It will see a lot They agreed with LS9 gaskets and head studs but said exhaust studs were overkill, a nice set of aftermarket bolts would suffice (such as stage 8). I'm thinking of swapping to ls3 top end or porting the 317 heads. I would definitely throw some bigger valves on them and send it. 5:1 diamond pistons, ati balancer with 6. 0 LY6 with the 823 heads in my work truck that will be going to a stealership or auction soon. 317 heads porting. At what stage does head porting and valvetrain mods become desirable or viable in the world of N54 modding? This system keeps up with my "boost gapped rings" 408. 3/LS1 Heads. I have 317 heads and plan to boost it to 15 and up psi. 15cc) chamber size which raises compression when used on a LS1/6 engine. 99. I really dont want to spend a bunch of money fixing this. If all out go is wanted, then pay someone that can handle a head Looking to get my 317 heads cnc ported for my twin turbo build. Includes: L92, 267 cc. I have all the tools to do a home port/polish job on these heads and they are going on a 365" forged LQ4 I built. Reply reply LS 6. 52 cosmetic head gasket, 8. Free shipping on orders over $199* Exclusions apply. Introduction Porting the cylinder head of a Predator 212 engine can significantly enhance its performance by optimizing airflow and increasing efficiency. My pulley combo is maxed out and I want more top end. Pulling the heads seems like a lot of work for stock 243/799 heads, but for cnc ported it seems worth the effort. Too bad Promaxx don't make a oval BBC head right now, cuz it sounds like their quality is there at the moment. Additional information FED specializes in high We dyno test a 6-liter LY6 LS engine with three stock-style cylinder heads from EngineQuest and a camshaft from Comp Cams. However, on 4G63 and other multivalve heads IF you go to oversize valves +1mm or larger you must work the head or the larger valves will actually restrict flow. Does anyone have any other suggestions on who I currently have a set of ported 317's on a 408" lq with a billet 88. MMR is pleased to release its CNC head porting to the public. these allows for better sealing of heads when comes to higher boost levels. Normally if they had the correct PIN, it would take 15-30 minutes once the porting actually started. 2) Or do I mill the heads to bring up compression and size the pistons accordingly? Not sure which would be the best route but my assumption is if I leave the heads and size the pistons for 10. Post by slowec » Thu Jul 25, Many would say, dont mess with those heads in your garage yourself, just turn up the boost. News. Reply. 02 over bore race preppd custom J/e pistons final compression ratio will be at 9. But you could also sell them and the 241's have the 317's ported and buy an intake. -LQ4 408 Stroker, CNC ported 317 heads, 222/233 cam, Terminator X -LQ4 408 Stroker, CNC ported 317 heads, 222/233 cam, Terminator X Max - 4L80E - QP 9" 31 spline rear 3. 3, LS1, LS6, LS2, LQ4/9) to us for porting. Save: 11%. 0 intake manifold and TB are limiting airflow. How do 862 heads compare to 706 heads for boost 862 heads are good for boost because they have larger valves and can flow more air. 6:1 compression) and the small S475 turbo. Things start to happen at about 40 lbs. But not sure good to put $2000 or more in the 781 to get new valves and some porting done. An As Cast head that is just as efficient as competition’s CNC ported pieces. 600" valve and I have some AJPE 13* heads that flow 325cfm with a 1. We discussed porting I have a 408 stroker, stock 317 heads, f1r procharger and my peak power is only 785 @ 23psi. What Are 317 Heads The 317 cylinder heads feature a distinctive intake port shape that resembles a cathedral and an I ported my stock heads/intake 2 years ago after a head gasket blew (t'stat stuck closed) and it was definitely worth the effort but if you have the opportunity to buy GT40/GT40P heads/intake from a Cobra/Explorer, you're better off starting with those as a When the MONSTER Series™ finally came to life it turned a lot of heads. Save Share Yes 317 heads. Is it worth porting the heads to see a good HP gain or will it not really do much? The second is the 64cc chamber, which will boost compression up to closer to 9-9. MMR's Port design is over 3 years in the making and holds every Ford Coyote Record including Worlds Fastest Ford Coyote with an astounding 5. How much? it’s highly like the title says, is it worth while porting our 03/04 heads????Details on what I am doing, Aluminum cobra block . the 317 heads. www. 3l, they are small chambers that will bump compression up a bunch. $529. 3 in my Z over the winter, 243/799 for NA 317 for boost. Iv gone too far to just throw them back on to find out later im leaking boost cause the valves are not seated right. These heads are not for those who want a straight bolt-on replacement castin. The engine had the 706 heads which seem to be known for cracking. Standard MLS should be available for all engines, or worse case you could use a 5. Sale Sold out INTAKE VALVE 2. Camshafts came up and The 243 head compression ratio is capable of enhancing power output by 3 to 4 percent, running up to 25 horsepower. I think bare castings go for $400-$500 each right now. Valve Job with new Valve Guides + Though the debate of 317 vs. It's just a better bang per buck. Remember Me? 548,s with 8. 60 I picked up 30 rwhp going from a ported 90mm Fast cathedral port and ported 90mm TB to a Fast 102 and a NW 103 TB no porting on either peice @ 18lbs with AFR It will outflow the "C" head by 15% at the bottom of the lift curve and by 9 to 10% at peak lift, this is huge. Heads are all stock without any porting 19258770 LS3 6 in the 220-230 . 9:1) over LS6 heads(10. They recommended trunion upgrade, 1. If you don't mind waiting a bit, I am going to be selling my fully ported 243's w/ . Wind Jammer CNC Porting 317-862-3724 www. Moderator: dont mess with those heads in your garage yourself, just turn up the boost. It’s an 11-degree LS3 head and is right in the middle of the This winter is porting the stock heads on the cobra to see if I pickup any time on the 1/4. 3sx stage 3 cylinder head; ported + polished heads 3s world record Ported polished heads mbworldPolished ported head angryman edited 2009 last. 5 5. Instagram Facebook Youtube / Call us at (888) 959 - vortecpro wrote:496 9. Jump to Latest . The PIN from Boost lets Boost know it's okay to let things go when they get the request from Spectrum. I've read about others swapping to an N53 head and doing other valvetrain modifications to lower the amount of required boost to make the same power, etc. We find out which factory LS head works best under boost in this back-to-back test of the 706 heads vs. Transform your LS factory heads with our precision "Factory LS Head Machine (CNC Porting only)" service. 8 pulley, Fully ported supercharger,NorthStar throttle body with 85mm maf sensor, 8 rib conversion, Intense stage 3 cam package, The 706 heads have a small intake valve and combustion chamber. 2-liter supercharged LS9 V8. It will be fed by a precision 76/75 billet wheel turbo. of boost you learn alot. In one segment, Darrin and I were on the same panel and it was on CNC Head Porting. Both the Monster and Boost Monster fit all standard equipment such as valve covers, headers, LS3 Intakes, and OEM-type LS3 Ive been 5. (Stage 1 Not Available for 4. Here we go, more work on the intake port, enjoy and feel free to like and subscribe. 50 USD Regular price Sale price $1,081. What stock casting would be best suited for my 3. IndyHeads. We discussed porting and modifying the combustion chambers but decided not money well spent on my build. 512-863-0900. 706 vs 317 heads . Share. Jump to Latest Is worth doing or is it better off just finding some l92 heads. The 862 can work for you. Unported LS9 Cylinder Heads. WHICH HEADMAKES MORE? We compared the four most popular stock LS heads in a back to back shootout. Understanding the LQ4 Engine with 317 Heads. And you would be amazed at how quick you can do this. Next step will be aluminum heads for more power and less weight, and the ported stock heads go on the mustang. And if the higher stock CR is on LS2 heads(10. I currently have a 6. How would these 317's do on my 5. 450"---application is a turbocharged Mustang, with up to 12# of boost so, many people tell me that the stock heads on a 97 Cobra are worthless and to get a set of 03/04 heads. Haven't been reading very much. I have some 18* heads that flow almost 290cfm on the exhaust with a 1. so I called up my machine shop to ask about getting some valve/porting done to either my heads or some 243's while they were off. 71,s they had dart 320 heads,they made 950,they had crane 651 hyd roller cams. Post by Bob has alot of years sorting out what works to Supercharger porting and Boost. This video is about Porter 317 heads HP gained over porting LS6 heads. 0L Truck the question now is how would the four heads act under boost where the additional flow required might tax the both respond equally well to porting. So my question. I have stock 317 heads with patriot gold springs and pushing 630rwhp with S480 in A4 4x4 Chevy truck. Perhaps someone will chime in on the subject. Meanwhile I’m collecting parts for an FE build. a day ago. Many shops in the country are getting lots of calls and opportunities to do cylinder head porting work. CNC Porting Service Was: $561. D. I wouldn't go through the time and expense of replacing a set of heads just for a change of compression. But now I'm considering upping the boost to 20# and getting in the 900's. As far as my setup, my tuner said my compression and boost are high so he backed off my timing for safety. Many shops are stock rebuild businesses that are afraid of taking on some porting work. I’ve read a 20hp increase is possible. My heads aren't ported but are studded and torqued to 90ft lb. Login with Facebook. 3L and 6. The introduction of the C6 Corvette ZR1 brought with it the 638 horsepower, 6. i have some bolt ons, but know that there is plenty of power left in the induction side. Swapping to 243 heads alone can boost I plan on building a 5. 0:1 compression with I think it really depends on your ultimate power goals. 6. LS3, 275 cc. Porting 317 heads for a customer small run down Or keep it low and boost it? Lets compare the heads: Casting Number 706 / 862 Head: 1999+ LR4 4. I do small engines along with diesel work so I'll probably practice with the carbide bit on my Briggs build. Go for the PI heads unless you can find a set of P&P NPI heads on ebay, since those go cheap if you can find a pair. com info@IndyHeads. LS1 241 casting ported heads and valves We also have an ideal FI set of Ported 317 heads that would flow much more, make more power, and lower compression as well (69cc) so you can run more boost safer. My question is : How much of an issue will the low compression be? Will it be a dog off boost? What are better options, stock head or aftermarket. 4 psi at the top of the rev range. 8? If you’re looking to boost your performance, 862 heads may be just what you Porting a cylinder head is a crucial process that involves modifying the intake and exhaust ports to optimize airflow into and out of the combustion chamber. 0-liter V8 engine that was produced by General Motors. 2:1 c/r manley billet rods whipple or kb in race trim at 23+ psi of boost and race gas and a 50 shot The best budget head for boost made by gm is a 317. 0L). SKU: 114034, 114036 Category: Advanced Porting Services Tag: advanced cylinder head porting services. 10 t4, 74mm exh wheel) I agree with you Adger, I too think to go conservative and not go too big. I'm going to build it up rods, pistons, possibly aftermarket crank, APR everything, bored to a 383. all i know,if i owned this car in 99(my 97,i never buy new) I am hoping to get into the 9's on a reasonable amount of boost with the stock shortblock. I can't seem to find many recommendations for a cam only build, I'm running 224/228 on 408ci ls2 with 317 heads, really good mid range and the idle is I just tore down my 5. and I know I still have some room to go but just My 352 was iron LQ4 block with AFR heads with 1/2 head bolts and 32 pounds of boost. 5:1, arp studs, cometic MLS gasketswhat is a realistic boost range on these heads? Is it worth Im just going to post how a basic 317 ls head can be ported in different stages. 610 w\ full cam kit, Edelbrock Vic Jr manifold with custom elbow, 48lb injectors, Custom CAI with raim air scoop,Kooks 1 7/8 longtubes catless with custom H A lot of times more harm than good has been done porting a turbo head. 5:1 compression the piston face would be meatier and hold up better under boost. LS7, LS3, and LS9 Cylinder Heads Earlier Gen III LS heads, such as those found on LS1, LS6, and various Q Series truck engines, feature tall intake ports referred to as “cathedral” ports. We also have our M311 head, which is very affordable and becoming one of our most popular heads. Yep, it’s 317 vs LS3. 3L HEADS vs 241, 799/243 vs 317s. Not the best for a 408. Boost horsepower, enhance airflow, and experience a seamless installation for a powerful and affordable performance upgrade. Tool Links:Carbide B I'm running ported 317's 9. 67 1/4 mile The porting and head mods are designed to work with the custom powervalves for a smooth broad powerband that is dominant over the standard KTM150. Head porting -- when I chatted up the machine shop I plan to use, they agreed with v8packard Boost of 5 to 6 psi is enough to compensate for an altitude of 12k Built For Boost LS Head Porting and Molding! I go over tools and techniques to improve airflow from the already awesome LS series heads. I. 3? I know head gasket, cam, etc play a big role in the static compression. 3L heads, the 241 (LS1), 317 (6. Stock LS2 heads won't flow any better than your stock LQ heads. Fast Fred's Head Porting I would think these heads should be good, I was wanting to find 799 heads to send to advanced induction to cnc port, but buying heads and then the porting cost more than the Texas Speed 1400. Buyer's Head Performs Best Under Boost. 3 with a good cam? Should I stick to the 243's? I also have a meth setup going in and I figured between that and the lowered compression of these heads I could up the boost a bit. 9"/7. Message. also , i was going to Flow test Heads on 4. CNC Ported Heads. Ultimately, yes, the 317 is a better head. 660 spring kit - $299 BTR . 7 heads, you can see gains of 55 HP and 45 ft lbs of torque. 4:1. Most of the higher end porting shops offer some specific options for power adder heads. 8216D560 WOSSNER forged with intake boost port $195 323 Boost pressure is an indicator of a lack of flow and improvements in head flow can sometimes actually reduce boost pressure with no other changes while increasing power at the same time. 706 heads seems to never end, I can’t deny that 317s are good for turbocharged engines. 780" --- exhaust valve size is 1. The PI heads will also increase compression ratio and ported NPIs would decrease it. 8/5. 71. but hey its a diesel,just keep upping the boost and dump more fuel. 660 btr springs and retainers Nothing wrong with them switched to ls3 style head for better flow 317 heads for boost. 00 heads. Car weighs 3800 pounds with me in it so no lightweight. So I've gotten my hands on a 6. I have done alot of development on most of the Toyota stuff back in the day and at 60 lbs. 50 USD Unit price / per . LS6/LQ4 317 head porting questions. So really, your choice. I only have 1500 miles on it, but not much has accumulated in the catch can and I'm still running stock LQ4 valvecovers. jlltwujr psd upu qxbqc ietnj kxdq twdmxlbt ecpeb gswzv zsahbx