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Q: How big can you bore a small block 400?
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How do you turn a small block 400 into a small block 454?

get a big block or bore it 54 over


Is the 400 a small block or big block?

The 400 Chevy is a small block engine. The 400 BIG BLOCK Chevy does not exist! 402 big block Chevy does. it seems in the early 70s Chevy put 402s in their pick ups and they had 400 badges. this opened the can of worms known as the non-existant big block 400.


What is the firing order for Pontiac 400 engine both small block and big block?

The firing order for the Pontiac 400 engine is that the small block powers the big block.


Can you put a big block crank in small block 400?

No


Did Pontiac firebird have a big block 400 in 67?

There is no Big block or small block in Pontiacs. They were the same size. "67 did have the 400 and 400 HO available for the Firebird.


Is a 400 engine in a 68 firebird a big block or small block?

Pontiac uses same block no small or big, Chevy describes their engines small or big


How can you tell if your 383 is a big block or small block?

Chrysler 383 is a big block. The Chevy 383, is a de stroked 400, small block.


400 firebird big block or small?

There is no "small block" , "big block" with Pontiac engines. The physical size is the same from 326ci to the 455.


Did Chevrolet make a 350 big block?

No, they did not. The smallest big block Chevy is the 396. They also made a small block and big block 400.


What is the biggest small block engine Chevy makes?

It wasnt a 400 big block it actually was a 402


How many Chevy small blocks are there?

350 and under are small blocks. There is also a 400 small block but there is a 400 large block. 396 and up are big blocks.


Is the Chevy v8 350 a small block or big block?

"The v8 350 is a small block Chevrolet motor.....................it became a big block at 396cubic inches......so anything smaller is a "small" block" this is a little misleading. a 350 is indeed a small block. a 396 is indeed a big block. but you can have a small block that is (internally..cubic inch wise) actually larger than a big block. for example GM made a 400 cubic inch small block. internally it is a larger engine than a 396, but the outer dimensions of the 396 are larger than the 400 small block. and the external dimensions and cylinder head design are what make a small block a small block, and a big block a big block. a small block engine simply has a physically smaller block...a big block is called a big block because it's block is bigger than that of a small block.