Is the 1970 Pontiac 455 engine in good condition?
Any 455 in good condition even the base 360hp with the small valve # 15 heads & 10.0 to one compression is most certainly not scrap. The higher horsepower and larger valve heads are more desirable, but in any case won’t work with today’s wizz bang gas.
What kind of engine does a Pontiac 400-455 have?
Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The 400-455 is pump gas friendly for the mild daily driver.
What kind of engine does a DCI 400-455 have?
DCI 400-455 is DCI’s most popular crate engine. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The 400-455 is pump gas friendly for the mild daily driver.
Why was there a turbo in the 1970 455?
One reason that 4 valve/cylinder heads and superchargers suddenly came to prominence. When the cost of the heated oxygen sensors became more reasonable or “coverable” by engine option costs, the turbos reappeared. These were just my own experiences. No more, no less. Perhaps others might have had different experiences? Back to the 1970 455.
What was the horsepower of a 1971 Pontiac Bonneville?
The standard engine for 1971-72 was a 455 cubic-inch V8 with two-barrel carburetor that was rated at 280 gross horsepower for 1971 and 185 net horsepower for 1972 and optionally available was the four-barrel version of the 455 rated at 325 gross horsepower in 1971 and 250 net horsepower in 1972.
Any 455 in good condition even the base 360hp with the small valve # 15 heads & 10.0 to one compression is most certainly not scrap. The higher horsepower and larger valve heads are more desirable, but in any case won’t work with today’s wizz bang gas.
When did Pontiac stop making the Bonneville engine?
This engine was used from 1995 until it was retired from the Bonneville in 2003. In 1997, Pontiac made a 40th Anniversary Edition to mark the 40th year of production of the Bonneville. Pontiac made six models: the SE, the 40th Anniversary SE, the SSE, the 40th Anniversary SSE, the SSEi, and the 40th Anniversary SSEi.
What are the specs on a Pontiac 455?
Specs on the 455 Pontiac Engine 1 Development. The Pontiac 455 V-8 was actually a bored out 428-cubic-inch V-8 with a bore and stroke of 4 inches by 4 inches. 2 Horsepower and Torque. The 1970 to 1971 Pontiac 455 generated 325 and 455 foot-pounds of torque. 3 Performance.