How much horsepower can you get out of a 400 Chevy small block?

How much horsepower can you get out of a 400 Chevy small block?

How much HP can a stock 400 SBC handle? Registered. 400 cranks are nodular iron and will handle 500 hp easy.

Is a small block 400 a good motor?

Evening all… the 400 is a great motor especially for street use. It has the power where you really need it. As far as overheating goes, make sure you have a good cooling system and you should be fine.

How much does it cost to rebuild a small block?

$600 to $3,500 depending upon how involved you want to get with the thing. Generally, for a “good” rebuild that doesn’t really get beyond ‘mild 350’ standards, you’re looking at about $1,600-2,500 depending upon location.

What is a Chevy 400 stroker?

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 can a stock 400 crank handle?

Registered. I agree 500 HP and 6000 to 6500 is max. Its not just the crank you need to worry about though. The stock 400 blocks are weak in the casting around the mains and are bad about cracking or busting.

How many freeze plugs does a 400 small block have?

Registered. Some 400s use 3 freeze plugs on the side.

Does a SBC 400 need steam holes?

The 400 ci block is the only Chevrolet small-block that has the steam holes on the deck surface. The Chevrolet small-block is by-far one of the most versatile V8 known to man.

How much does a 350 4 bolt main block cost?

In general, a good rebuild that does not really exceed’mild 350′ standards will cost somewhere between $1,600 and $2,500, depending on where it is located.

How much does it cost to machine a SBC?

Machine shops typically charge between $150 and $600 per head or valve resurfaced. Typically, a shave and seal set will range from $150 to $200, based on the head and the number of valves involved. This would take the time necessary to clean, resurfaced and re-seat all the valves, etc.

How many cubic inches can you get out of a 400 SBC?

Internal Dimensions. General Motors achieved the 400 SBC engine’s displacement by increasing the bore to 4.125 inches and the crankshaft stroke to 3.75 inches – actual displacement is just over 400.9 cubic inches.

Do you need steam holes on 400 SBC heads?

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.