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2.4484-2.4493 Main Bearing Journal Dia.
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∙ 15y ago
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What size crank do you use in a Chevy 383?
There are new cranks from the aftermarket for this. Check with Summit, Jeg's, or similar. You can also use a crank from a 400, but the main journals will need to be modified to fit the block. The stroke is 3.75".
Can a Chevy 400 Sb crank work with a Chevy 350 Sb?
yes, but the main journals will need to be turned down to fit the 350 saddles
What is the difference in the gm engine 400 and 455?
If you mean the difference between the Pontiac 400 and 455....the differences are the bore size, the crank stroke length, and the main bearing journals. All are bigger on the 455. However, there is also a small block Chevy 400....which has nothing the same as the other two. The Pontiac 400 has a bore of 4.12, stroke 3.75 and 3" main journals. The 455 has a bore of 4.151, stroke of 4.21, and 3.25" main journals.
How do you install a 400 crank into a Chevy 350 engine?
Take the crank to a machine shop and have the main journals turned to accept 350 bearings. Might be a good idea to have it balanced while it's there.
If Pontiac 400 rod journals are 2.2 what are Chevy 400 journals size?
Factory Pontiac rod journals were 2.25 on all 287-455 V8s from 1955-1978 except for the '77-81 265/301. All connecting rods were also 6.625" except for the experimnental 303, and the '77-81 265/301 . Chevy 400 rod journals were 2.10" and used a 5.565" rod
Will a stock small block Chevy 400 crank fit in a 350 small block?
No. You would need to have the main journals turned down .200". Then it would fit.
What is the difference between a 350 Chevy crank shaft and a 400 crank shaft?
400 has a longer stroke
What is the bore size for a Chevy 383 stroker?
If I remember this correctly its stock 350 4 inch fitted with the 400 crank and rods.
What machining do you have to do to put a 400 sbc crank in a 350 sbc?
The main journals need to be turned down.
Can you put a 400 crank in a 305 block?
yes, but you'll need to have the main journals turned down first.
Why did Chevy company's stop making small block 400 engine?
it was a waste of time and money. it was the only small block in its generation that was externally balanced and had different size main and piston journals.
What is the size in cubic inches of a Chevy 350 bored 060 over with 350 crank and 400 heads?
Why 400 heads? They are notoriously bad flowing heads without much modification the engine would be about 360 cubic inches, but the heads have nothing to do with the size of the engine.
