Can You Put 350 Heads On A 400?

Can you put lt1 heads on a 350 block?

The long answer is yes, the short answer is an emphatic NO.

They will physically bolt up, but the water passages don’t line up.

You would have to weld, drill, resurface, etc.

Then you would have welded, machined factory heads that only flow slightly better than TPI heads..

Do you need steam holes on 400 SBC heads?

[edit] Introduction. The SBC 400 block was designed with steam holes in the deck and heads. … SBC heads with steam holes can be used on other blocks without problem by using a 350 head gasket.

Are lt1 heads aluminum?

The iron LT1 heads are from the same casting as the Corvette aluminum heads and have better flow. The Impala SS LT1 with the cast iron heads have a different cam due to more weight and needing more torque down low.

How much power can a stock 350 crank handle?

For small-blocks, a safe limit for a cast crank is 500 hp and a maximum of 6,500 rpm. With big-blocks, their bigger mains will handle 650 hp. We’ve seen cast cranks in turbo motors take over 2,000 hp, but we don’t recommend it. These days, 4340 is the standard for forged cranks.

What is a 350 bored 40 over with a 400 crank?

A 350 block ( bore size 4.00 ) bored . 030 is 4.030. Add a 400 crankshaft ( a 3.75 stroke ) and you will have a 383.

What size heads for 400 SBC?

A hot 400 SBC can easily use a head with 200+ cc intake port volume.

Is an lt1 a 350?

Thanks. Brian Brennan pointed out a couple of facts concerning the engine in his roadster. “The LT1 was the base motor in 1992 base version 350/300 (block casting 10125327). Interestingly this was the first of the reverse-flow water systems and the first to use Mobil 1 from the factory.”

Will lt1 heads fit a 350 Vortec?

Not Considered a Senior Member And no, LT1 heads will not interchange on to Vortec blocks or any of the classic small blocks for that matter. Why is because the LT1 is reverse cooled. While LT1 heads will bolt on the classic small blocks, none of the coolant ports line up.

Why is a 327 better than a 350?

A 327 with it’s shorter stroke would need shorter gears so it can GET to its revs, where a 350, with its slightly longer stroke and more torque output will pull a little taller gear than the 327 will.

How much HP does a 383 stroker make?

That combo would probably make around 465 hp and nearly 500 lb-ft, but at less rpm. But never mind that. The point here is 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm….Hot Rod’s Proven Recipe For A Simple Chevy 383 That Knocks Down 500 HP And 500 LB-FT.True 383 PowerRPMLB-FTHP6,20042550222 more rows•Oct 13, 2009

What is a 350 bored 60 over with a 400 crank?

60 over with a 400 crank is around a 388.

Is a 400 SBC a good motor?

Overall, the 400 SBC is a really good block. They do come with a bit shorter connecting rods (5.565″ compared to 5.700″ for the 350) than do most of the other SBC engines out there.

Why is a 383 better than a 400?

A 4.030 bore 350 block will give you 383 with a 3.75″ stroke crank. The SBC 400 has a much larger BBC sized bore of 4.125″ so it is bigger and better than the smaller bore motor (it has a bigger crank journal as well as being designed from the ground up for a 3.75″ stroke).

How can I get more horsepower out of my 350?

How to Get More Horsepower Out of My Chevy 350 Small BlockModify your air intake. This can be done in a variety of ways, from simply installing a K & N air filter to installing a complete cold-air-intake system. … Modify your exhaust. … Change your camshafts and valve train. … Purchase new cylinder heads, or have yours ported and polished. … Have your motor rebuilt and blueprinted.

How do you tell a 350 from a 400?

Check the bore on the engine if the heads are off. The Chevy 350 cubic inch engine has a 4-inch bore whereas a 400 cubic inch engine has a 4.125-inch bore. The 350 has a 3.48-inch stroke, and the 400 has a 3.75-inch stroke. The 350 rods are 5.7 inches whereas the 400 has 5.565 inch rods.

How much horsepower would a stock 400 SBC with Vortec heads?

376 hpWith the stock Vortec heads, the low-compression 400 managed to make 376 hp and almost 450 lb-ft of torque.

What vehicles came with a 400 SBC?

The 400 small block Chevy was produced from 1970 until 1977. It was originally installed in big sedans and wagons, but later found its way into some trucks. I don’t believe it was ever put in the Chevelle or Camaro. A co-worker has a very healthy 400 in his ’88 Corvette.

How do I know if my SBC is 400?

How to Identify a Chevy 400 Small BlockOpen the hood and view the engine from the front on the passenger side.Look for the engine code. According to the Chevy-Camaro website, the code is located on a machined pad directly forward of the passenger-side cylinder head, on the front of the engine block.