What was the top of the line Pontiac engine in 1969?
What was the top of the line Pontiac engine in 1969?
Pontiac’s top engine option in 1969 and 1970 was its Ram Air IV (R/A IV), which had a solid 6,000-rpm operating limit. The intake-port roof of the round-port R/A IV cylinder head was raised 1/8 inch and the intake port volume was increased from 153 to 180 cc, which allowed it to operate at its intended limit.
What kind of engine was in 1969 Pontiac Firebird?
Never seeing the light of day was Pontiac’s only really new 1969 engine, a 303-cid small-block V8 that never got too far beyond the prototype stage. It was developed strictly to make Firebirds competitive in Sports Car Club of America (SCCA) Trans-Am racing, but only about 25 cars were fitted with these short-stroke, tunnel-port V8s.
When did Pontiac start making their own engines?
Pontiac planned to produce the 1953 models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay. Displacement began at 287-cubic-inch (4.7 L) and grew as large as 455-cubic-inch (7.5 L) by 1970. Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981.
What kind of engine did the Pontiac 301 have?
A single Garrett AiResearch TBO-305 draw-through turbo was used. It featured a nominal maximum boost of 9 psi. The 301 hadn’t been designed for this sort of application, so Pontiac engineers added a higher-capacity oil pump and somewhat beefed up the engine.
What is the production number for a 1969 Pontiac 350 HO?
Underneath the production number is the two-letter engine code. Decode the production number and engine code. According to Pontiac Power, the production number for both 1968 and 1969 350 HO engines is #9790079. Between Pontiac Power and Firebird, the two-letter engine code is either “WK” or “WN.” Locate and decode the block VIN.
Pontiac’s top engine option in 1969 and 1970 was its Ram Air IV (R/A IV), which had a solid 6,000-rpm operating limit. The intake-port roof of the round-port R/A IV cylinder head was raised 1/8 inch and the intake port volume was increased from 153 to 180 cc, which allowed it to operate at its intended limit.
What is the firing order of a Pontiac engine?
The Pontiac Engine. Pontiac Firing Order Pontiac V8 265, 301, 307*, 326, 350, 389, 400, 421, 428, 455 Firing Order Cylinder Numbering Distributor Rotation Rotor Under Cap Spins: Counter Clockwise (*307 rotates Clockwise) These graphics courtesy of Boxwrench.com.
Pontiac planned to produce the 1953 models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay. Displacement began at 287-cubic-inch (4.7 L) and grew as large as 455-cubic-inch (7.5 L) by 1970. Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981.
