How much HP can a 400 small-block handle?
With our low-compression, power-adder friendly 400-inch small-block easily exceeding 525 hp, it was time for some boost. And that’s where things start to get very interesting.
Will 400 heads fit on a 350?
They are most likely cracked. They are decent flowing head but with 76cc chambers your compression ratio will be low.
Do you need steam holes on 400 SBC heads?
Drilling Steam Holes in a Cylinder Head Having stated that, the general consensus is to use the proper 400 style head gaskets with steam holes and use them as a pattern to place the holes in the correct position. It appears a set of Fel-Pro 1014 head gaskets offer these holes and are only 0.039-inch thick.
What’s the difference between a small-block 400 and a big block 400?
Though big-block engines are significantly larger than their small-block brethren, the true difference between these two is more about displacement, bore, and stroke than strictly size. Typically, big-block engines have displacements of greater than 400 cubic inches and small block engines have a smaller displacement.
What is a 400 small block Chevy?
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.
What liter is a Chevy 400 small block?
6.6 liter
400. The largest version of the Generation I small-block was the 400 (6.6 liter). It was the only engine available with both the 4.125-inch bore and the 3.75-inch stroke crankshaft.
What size heads for 406 SBC?
Henderson Power Sports tops 600 hp with a 406-cube pump-gas hydraulic-roller Chevy 400 small-block
| BY THE NUMBERS | |
|---|---|
| 406 Chevrolet Small-Block | |
| Rods: | Eagle 6.00 inches |
| Cylinder head: | AFR 235 |
| Intake valve diameter: | 2.125 inches |
What is the horsepower of a small block 400?
Run on the dyno in carbureted trim, the modified 400-inch small-block produced 524 hp at 6,400 rpm and 486 lb-ft of torque at 4,800 rpm. After running the carburetor, we replaced the Holley XP with a 4150 throttle body. The airflow supplied by the high-flow throttle body was combined with fuel from a set of 120-pound Holley injectors.
What car did the 400 small block come from?
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.
What is the best small block chevy engine?
First produced in 1967, the Chevy 350 is the best known small block in GM’s engine inventory. It is remarkably versatile and has powered everything from the Chevy Camaro to the Cadillac. It came in numerous horsepower and torque configurations, and is also considered one of the easiest engines to rebuild with aftermarket parts.
What is Chevy small block 400?
small block 400 is for cars- long 400 is for usually pick-ups and larger trucks.most common is chevy. the piston rod stroke is longer and to create more torque but you sacrifice rpm.