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Performance modifications included a "hot" camshaft (in reality, just a camshaft used in various applications during the '70s with .440"/.440" lift and 196°/208° duration at .050"), stiffer valve springs, a larger vibration damper (same as all '73-'79 350s, 403s, and 455s), a Y-pipe dual-outlet exhaust system, and richer secondary metering ...
Also available was the L77 V code 455 with 270 horsepower (200 kW) available only without air conditioning. Although Pontiac's SD 455 cubic-inch engine lasted one more year with 290 horsepower (220 kW), Oldsmobile's high performance 455 engine would only last one more year culminating with the L76 optioned 455 W-30 Hurst/Olds in 1974.
Oldsmobile boasted in a 1965 press release that "a Jetstar I proved to be the top accelerator of the entire event" at the 1965 Pure Oil Performance Trials in Daytona Beach. Those trials were sanctioned and supervised by NASCAR. The 370 horsepower (280 kW) Starfire V8 was the largest and most powerful V8 in Oldsmobile's market segment in 1965.
A limited-production model was the Hurst/Olds, a special 4-4-2 marketed by Oldsmobile and Hurst Performance. The H/O combined the 4-4-2 suspension package with a 455 cu in (7.5 L) Rocket V8, not ordinarily offered in Cutlasses because of a GM policy limiting intermediates to engines of 400 cu in (6.6 L) or less.
The Renegade Jet Boat A 1976 Rogers Bonneville Jet Boat. Finnegan and Freiburger drag an old Rogers Bonneville jet boat to Lake Elsinore behind the Muscle Truck, remove the engine from the truck, install it into the boat, go boating, take the engine back out of the boat, and re-install it into the truck. 36 [37] Monte Carlo Lowrider
The L75 455 engine continued as an option into the 1976 model year for the Trans Am, however, Pontiac opted to drop the "H.O." moniker from the shaker due to the disappointing public approval as the motor was not deemed to be "High Output". The 455 was fundamentally the same for the 1976 model year, albeit the shaker decal now just read "455".
The Starfire name was first used by Oldsmobile on a one-of-a-kind dream car that was shown at the 1953 Motorama auto show. Named after the Lockheed F-94 Starfire jet fighter, the original Starfire was a 4-passenger convertible that had a fiberglass body, a 200 hp (150 kW) overhead valve Rocket V8 engine, bucket seats for all passengers and a wraparound windshield.
The Oldsmobile Diesel engine is a series of V6 and V8 diesel engines produced by General Motors from 1978 to 1985. Their design was based on the Olds 350 gasoline engine architecture. A 350 cu in (5.7 L) V8 was introduced in 1978, followed by a 261 cu in (4.3 L) V8 only for the 1979 model year.