Pontiac ram air heads. I’m told by the previous owner.

Pontiac ram air heads O. Clean and complete. A wilder 041 cam (068 H. i. $525. OPTIONAL CERAMIC COATING: Jun 16, 2021 · In May of 1968, the powerful Ram Air II 400 superseded the Ram Air engine. 87 Sep 23, 2006 · Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. 20 valve! Learn more… DCI 5 intake Intake capable of 1 x 4, 3 x 2’s, 2 x 4’s, roots style blower, and port fuel injection! Learn more… DCI Ram Air 5 crate engines available! Learn more… DCI Ram Air 5 Heads 400 CFM Street Port Bare Pair. Free local pickup Aug 16, 2023 · I bought my heads almost 40 years ago from a co-worker, a mechanic who ordered a new Ram Air 3 '70 Formula with a 4 speed. Exhaust Crossover Port Matchings Aluminum 421 SD manifolds from original pontiac tooling. 12 (tie) Best low-compression D-port head No. Speedmaster CNC ported cylinder heads are machined on dedicated 4-axis and 5-axis CNC machining centers to ensure accuracy and cost effectiveness. The Pontiac Ram Air series embarked on a legendary journey of performance enhancement through advanced air induction technologies across multiple iterations from the first Ram Air system to the peak performance of Ram Air IV and the ultimate development of Ram Air V. 11 Jun 4, 2014 · You've no doubt heard the stories about the legendary '69 Pontiac Ram Air V, the exotic, rev-happy V8 with cylinder heads that reportedly outflowed the vaunted Chrysler Hemi. 96(1971) Best low-compression post-1972 head No. Two styles are available: a street legal 87cc combustion chamber version for low compression applications using 92 actane fuel and a 72cc chamber version for higher compression, racing applications. may be different than other flow benches also. Often called the "Ram Air III", this engine was officially called the "400 Ram Air" for 1969 and then simply "Ram Air" for the 1970 model year. 16, No. highperformancepontiac. $999. I believe these heads should have a 48 cast on the center exhaust ports but the numbers are not very legible. 00 shipping. I promise you that the surprises will be many. Hi heat alloy aluminum. 6X Best balanced head (exhaust to intake) 1963 421 SD Best low-lift (under . In 1967 Pontiac made some open chamber heads(i. 11" valves are standard issue, the valve seat can be machined to accept a larger valve with minimal work. More about DCI Split-Port Ram Air V Heads. 99. You will not find a nicer set, and did I mention complete. Collectors are required for each manifold. 400 Ram Air III: 366 hp (GTO) 2. 670 Worst Oct 20, 2009 · 16 head In late 1967 the #16 open chamber head was released and it replaced the #670 heads Ram-Air 1- H. Aug 24, 2017 · Best performance head 1970 Ram Air IV Best intake port 1969-70 Ram Air V Best exhaust port 1 968 1/2 Ram Air II Best D-port head No. Every DCI Split-Port Ram Air V Head is MADE IN USA for quality and performance! Using highly efficient split ports and made to order combustion chamber shapes, DCI Ram Air V cylinder heads offer the most versatile high performance Pontiac heads on the market. or Best Offer +$500. Calibrations,set-up,etc. Not molested, valves stand up nicely. 48, No. I think the main purpose would be the air flow comparison between the different heads. 600) iron D-port heads vs. Best exhaust port 1 968 1/2 Ram Air II. I ran the heads for awhile, but they weren't much better than my 670's due to the small combustion chamber. Beginning in 1968, Pontiac fitted their highest-performing engines with heads featuring redesigned round exhaust ports (shown above). The readings may be 10% high. 20 valve! Excluding the Ram Air IV and Ram Air V heads. 66" While the 2. 1970 PONTIAC Ram Air IV Block, Heads, and intake with crossover, 73 SD rods. 88cc Fully CNC Machined Chambers. Best performance head 1970 Ram Air IV. 400) head 1967 No. DCI 5 heads flow as cast 380+ cfm @ . Jun 13, 2023 · If the heads are still for sale, can you please email me at rickross@astound. They ARE supposedly one of THE best flowing Pontiac iron D port heads. And as the muscle car era evolved into the late ’60s, a new Pontiac Motor Division high-performance engine program came to light: Ram Air. Engines so equipped were the ‘68 Ram Air II 400, 1969-70 Ram Air IV 400, 1971-72 455 H. From 1967 to 1979 Pontiac engines used the same pushrods, Rocker arm, and valve covers. O and they also came on G/P there are two versions of 670 heads. Custom chambers are available for an additional fee. The DCI Ram Air 5 heads will bolt onto a factory block with bores as small as 4. $1,199. 400 CFM Street Porting, Fully Machined with Seats and Guides Installed DCI Split-Port Ram Air 5™ Product Details DCI Motorsports Inc. 96 Disclaimer: Take these air flow readings with a grain of salt. d. From 1972 up Pontiac also changed the head’s exhaust crossover. Feb 13, 2024 · Speedmaster ram air IV flat tappet heads with a edelbrock 7156 intake. 70s in an all metal 76 Trans Am with Ram Air IV heads so I was wondering. , and 1973-74 Super Duty 455. I know a guy running 9. Speedmaster Pontiac heads include valve sizes at 2. Cylinder heads on other Pontiac V-8s had D-shaped center exhaust ports, but all the R/A-II exhaust ports were round, and larger runners increased flow. 1968 Pontiac Ram Air 400 V8 Mecum Oct 4, 2024 · Evolution of the Pontiac Ram Air Series. I’m going to install new header exhaust gaskets and wanted to be sure I get the right size and shape for the exhaust ports. Pre-Owned. The ratings may not be comparable to flow ratings from another flow bench. Opens in a new window or tab. or Best Offer. 11" Intake, and 1. $19,950. has brought back the ultimate, ultra rare, holy grail of Pontiac’s: The legendary Ram Air 5 cylinder Designed for 1965-79 389-455 c. SpecsBrand:SpeedmasterPart Number:PCE281. Best intake port 1969-70 Ram Air V. I really want to do a cam swap as well, but a well known vender is really pushing a hydraulic roller swap (pricey) and wouldnt even recommend a flat tappet (which they sell) due to the risk of wiping a lobe. 600) Ram Air IV heads with everything else being equal? Yes, you can buy aluminum heads but it would be cool to hear feedback/opinions on this topic. Make sure to use the correct intake manifold. While the Ram Air V was never offered in a production vehicle, adding to the mystique, a number of the engines and Pontiac Ram Air III CYLINDER HEADS #62 400 GTO 1969 All Stock Date Match 428 GP. DCI Split-Port Ram Air 5™ Heads and Intakes Now Available! DCI 5 heads flow as cast 380+ cfm @ . Ceramic coating recommended. Ram Air I and II: The Beginnings May 1, 2012 · Check out these McCarty Racing Ram-Air V heads and new design intake on the dyno. 800″ with a 2. It would later become known colloquially as the "Ram Air III", though Pontiac never called it by that name. e. ported (290-300 @. One 2:11 intake closed chamber,72cc,part# 9788067 came on 400,428,The other is also closed chamber,72cc but has Longer valves and a casting of a 97 on end of head some also had Jan 24, 2017 · Has anyone run back to back test on race ported (260-270 @. Buy It Now. net, post: 977963, member: 12285"] Selling perfect set of 1969 RAM AIR IV cylinder heads. 061). Parts Only. He wrecked it and parted it out. After 1967 the heads were open chamber heads. Pontiac engines, these heads are patterned after the 1969 -70 Ram Air IV Pontiac cylinder head. 1970 Pontiac 13 400 Heads Trans Am Ram Air III D Port 350 HP 4 Barrel GTO B23 70 (For: Pontiac) Opens in a new window or tab. 00 delivery in 2 Jan 9, 2018 · The big-valve NASCAR heads from this program were the foundation of 389 High Output (HO) that netted 340 horsepower in the 1964 GTO. Mar 26, 2018 · Good afternoon, my ‘65 GTO has ‘69 Ram Air III heads I’m told by the previous owner. A 400 cubic inch ram air equipped V8, it was an option on the 1969-70 GTO and Firebird Formula. 15; A factory valve cover fits without modification; All of our castings are cast without combustion chambers so that we can update them for the intended application. Unlike other Ram Air engines that relied on Quadrajet carburetors, the Ram Air V intake was designed to use the 850-cfm Holley four-barrel, similar to what was found on the Chevy L-88 427 engine. Best D-port head No. cam with automatic), forged pistons, and more were new. The Ram Air IV also has a taller intake port and the Ram Air V has Round Intake ports. Nov 30, 2024 · A different Ram Air V head was also produced for a planned short-deck, 303-cubic-inch engine intended for Trans-Am homologation. Read more only at www. 2165Part Type:Cylinder Heads Cylinder Head Style:AssembledCylinder Head Material:AluminumCylinder Head Finish:NaturalCombustion Chamber Volume (cc):72 ccCNC-Machined Combustion Chamber:YesIntake Runner Volume (cc):215 ccExhaust Runner Volume (cc):175 ccCNC-Machined Intake Runner:NoCNC-Machined Exhaust Runner:NoIntake Port Shape:Ram Air IVIntake Port Jun 1, 2022 · One more interesting solution was simply to run the pushrods straight through the intake ports, as Ford did with its 302 and 427 Ford Tunnel Port engines—and as Pontiac did, too, in 1969 with its near-legendary Ram Air V V8. Two versions available A-all D-port heads; B for 63 SD "980" head only. Cylinder Heads Pontiac V8 48 1969 69 Ram Air III Gto Judge Trans Am Firebird. Clean, no cracks, no bolts broken off. 20 valve! Learn more… DCI 5 intake Intake capable of 1 x 4, 3 x 2’s, 2 x 4’s, roots style blower, and port fuel injection! Learn more… DCI Ram Air 5 crate engines available! Learn more… We'll get into the complexities and complications of porting various Pontiac heads in the near future. Pontiac made closed chambered heads until 1967. or Best Offer +$80. com, the official website for High Performance Pontiac Magazine! More about DCI Split-Port Ram Air V Heads. Fits 61-63 B-body Miniature starter or upside down starter is required. 00. . audnw mloz vuwndd xydzn qpjsdk qcyogc vvtt itetrs kyvvcuc iaiqo