![]() ![]() ![]() The hood, unique to the model, had functional air inlets to aid engine breathing. Twin fiberglass, rear-facing scoops helped vent heat from the engine compartment. Trans Ams were easy to spot because each one was finished in Polar White with medium blue racing stripes and a trunk-mounted airfoil. Dubbed the Trans Am (after the Trans American Racing Series), it quickly became a pony car icon and one of the best-known American muscle cars ever, ultimately dethroning the mighty GTO as Pontiac’s most popular performance model. In March of 1969, Pontiac quietly announced a new performance/trim option for its popular Firebird model, but it did not stay quiet for long. All featured special high-flow tunnel-port heads, forged steel crank, four-bolt mains, 10.75:1 compression, 800cfm Holley 4-barrel, aluminum intake and a special high-rpm camshaft. 1969 Pontiac Firebird Ram Air IV 4-Speed Muscle Car Of The Week Video 146 This week, we spotlight a car from The Brothers Collection we found at the Muscle. Pontiac Special Projects Group developed three versions in displacements of 303, 366 and 400 cubic inches, the latter for street and drag race duty. Very desirable air conditioned, 4-speed convertible with a 400 motor. These heads will also require special intake manifolds.Ģ.11 Intake Valve, Screwed Stud, Auto TransĢ.The L85 Ram Air V engine was the ultimate product of Pontiac’s decade-long racing engine development program that began at the turn of the Sixties and was arguably the genesis of the musclecar era. This was body off frame, rotisserie restored, we have a photo album of the process. The Ram Air IV also has a taller intake port and the Ram Air V has Round Intake ports. Make sure to use the correct intake manifold. From 1972 up Pontiac also changed the head’s exhaust crossover. 1969 Pontiac Ram Air IV Engine Aluminum Intake Manifold New aluminum intake for your 69 Firebird or Trans Am. From 1967 to 1979 Pontiac engines used the same pushrods, Rocker arm, and valve covers. However, they are harder to find and like the 1967 heads, they have a closed combustion chamber.Įxcluding the Ram Air IV and Ram Air V heads. The 19 Super Duty engines would work well also. Premiering in the 1967 Pontiac GTO/Firebird, the 400 cubic-inch RA-I produced 360 horsepower using a large camshaft, a bespoke intake and cast-iron exhaust headers along with unique cylinder heads. Then the best option would be to choose a high output Pontiac heads produced from 1967 on. Pontiacs Ram Air IV engine was the fourth evolution of an engine that had helped to create the muscle car as we know it. There are aftermarket heads available but, If you don’t want to use aftermarket heads. Looking for a performance head for your Pontiac? These heads flow better producing more power than the heads produced pre-1967. The high output heads produced by Pontiac after 1967 used bigger intake and exhaust valves and a 14-degree valve angle. Pontiac heads produced PRE 1968 used a closed combustion chamber design while heads produced from 1968 on used an open chamber. Except for some special heads the bolt pattern, the bore spacing, and deck heights are the same. ![]() All Pontiac V8 cylinder heads from 1955 to 1976 are essentially interchangeable. 1969 Trans Am was a superb Grand Touring car. Pontiac used different valves and combustion chamber size for their V8s to change compression ratios, fuel economy, and horsepower output. Ram Air II dual-pattern cam profile, the RA IV's lift and duration were. Over the years Pontiac v8 Cylinder heads came in many specifications. Ram Air III Pontiac Heads Pontiac V8 Cylinder Heads. ![]()
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