Thread: 454 BB Chev VS 502 BB Chev

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I think I have toasted some parts in my 454 BB engine....My question
is, if I went to a 502 BB engine, Would any of the 454 parts fit the 502.
such as heads, oil pan, cam, crank, etc.....Thanks R dobbs

some will or all but the pistons and block. but whats is the 454 mark 4or5.6 and what year 502 block is it a 4or5.6 this would have alot to do with what will work

Pat, I bought the engine 8 yrs ago, it is a vette engine, I think a
L 88, don't know much more than that on the 454.....I was just
thinking about trying to come up with a 502 block for more cubic
inches...Haven't bought one yet...r dobbs

L88 was a 427 block LS 5 and 6 for hi hp 454 .if you want more cid out of the block you have a 496 498 are not hard to do. but you will not use much of the old 454 . sounds like you have a two piece rear main seal block so you want to use a block that your heads will fit. like oil pan all tin etc it needs to be a GM mark 4 block as well or the dart world or the newer cnc bowtie block. but not the marine 502 mark 5 or 6. with a seal adapter that will let you use your old crank in a one piece seal block mark 5 or 6 block but head s will not seal up on the new open deck

save alot of money just turn the 454 to a 10.5 compression 496