How much horsepower does a Chevy 400 small block have?
In case you missed the story, the best power numbers were gained with a set of GM Performance Parts Vortec heads supplied by Scoggin-Dickey, and even then the 400 small block Chevy managed only 401 hp and 458 lb-ft of torque.
How much horsepower does a Chevy 400 big block have?
Its a 2 bolt 1970-1980 block that made 150-180 HP stock.
How much horsepower does a 400 Chevy motor have?
The 400 was made in 4-bolt main journal from 1970 to 1972 and in 2-bolt main journal from 1973 to 1980. The 400 can have either 2 or 3 freeze-plugs per side though all 400 blocks have the provisions for a 3rd freeze-plug on each side. The 400 was rated at 245–265 horsepower (gross[150–180 HP net]) through its life.
What is a 400 stroker?
This is a stock style setup, featuring a 3.750″ stroke. This is the largest stroker combination available for the Chevy 400, using a 4.000″ stroke to achieve 434 cubic inches of displacement. This configuration will be more bottom-end heavy than the others, with less emphasis on top-end power.
How much horsepower would a stock 400 SBC with Vortec heads?
376 hp
See all 12 photos Here’s the 400 with the stock Vortec heads on the dyno at Westech. We retained the stock Vortec springs to break in the cam. With the stock Vortec heads, the low-compression 400 managed to make 376 hp and almost 450 lb-ft of torque.
What years did Chevy make the 400 small block?
The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform. It was intended as a low performance, high-torque engine primarily used in Chevy’s heavier passenger cars and light-duty trucks.
Is the 400 a big block?
There was no such thing as a small block Pontiac. Buick’s 400 was a big block, sharing its external dimensions with the 430 and 455. Oldsmobile had two versions of the 400, a larger bore/shorter stroke version, and a small bore/long stroke (same stroke as the 455) version, which were big blocks.