When was the last year a Pontiac V8 was made?
In 1973, the Ventura got the Pontiac 350 instead of the 307; in 1975, it got an Olds-built 260. By that time, Pontiac V8s had catalytic convertors and other power-robbing economy and emissions changes. The last year for the big 455 was 1976.
When did the 85 hp Flathead Pontiac come out?
Out in 1932, it was the same 251-cid V8 used in Pontiac’s almost-dead parent make, Oakland, during 1930 and 1931. The 85-hp flathead was basically unchanged in the Pontiac, except that the mounting system was slightly modified.
What kind of engine did Pontiac have in 1955?
The 1955-up Pontiac V8 that finally reached the public was an overhead valve engine with cast iron cylinder heads and block and wedge-shaped combustion chambers. An innovative design feature was mounting the rocker arms on ball pivots on studs set into the cylinder head, rather than using a separate rocker shaft.
What was the highest horsepower of a Pontiac V8?
In 1959, the 370 was stroked out to become the famous 389-cid Pontiac V8. Fuel-injection was gone, but the highest output level was now up to 345 hp thanks to a Tempest 395-A option with a 10.5:1 compression ratio and Tri-Power combination. The 389-cid V8 was used in all Pontiacs in 1960.
When did the Chevrolet 305 V8 engine come out?
As America faced an energy crisis and the government began to regulate a car’s emissions, General Motors made adjustments to many of their small block, V8 engines. GM introduced the Chevrolet 305 engine in 1976 to provide a smooth driving performance while allowing for lower octane fuels and lower emissions.
What kind of engine does a 1985 Chevy V8 have?
In the 1985 to 1987, there is a single piece rear main seal — this engine is not very common. The 1987 to 1995 engine has a one-piece rear main seal. The valve covers bolt down center and it has a metal timing cover. The engine can have a manual transmission or an automatic transmission gearbox.
What was the horsepower of the Pontiac Firebird in 1985?
The TPI boosted max horsepower on the V8 from 190 in 1984 to 205 in 1985. The one downside of this engine option was that it was not available with a manual transmission. Also impressive was the horsepower boost to V6 models. The new 2.8 litre engine improved horsepower to 135, compared to the previous year’s rating of 107.
What’s the horsepower of a V8 5.0L 305?
The propshaft of this engine is capable of a maximum power output of 220 hp at 4,000 rpm. The number of revs per minute when the engine is idling in neutral is 650 rpm and the maximum is in the range of 4400 to 4800 rpm.