cepx111

Even if you have to buy new forged pistons for the big block, you'd be way better off in my book but thats> JMO

Jordan1984

Then I got to buy forged rods and crank or they become the weak link. Dont want to throw boost to a cast piston thats already on a .30 overbore block, take a chance or melting a piston and rod coming apart and goin through my block.

cepx111

Jordan,
either way you look at it, your SB <> or his BB

Your going to need all forged internals anyway for this supercalafristic turbo you got.

No sense beating around the bush here, build yours or take a look at this 454 and see what it's got, you can't post or wish this dudes motor into something it is or ain't - theres noway of knowing with out taking it apart period.

Tod74

I agree with Charlie......350's are everyhere...a good 454 core would cost you 5 to 6 hundred bucks

signsbyesa

i paid $800 for my block on here and you can find some good
forged parts on here to fill the block with and even make a
468 or a 496 for cheap, (not too cheap) but yea charlie said
since you've sprayed your stock cast sbc already i would swap
the life on that sbc after being sprayed is edgie especialy with
cast slugs and crank, cast parts don't last too long on spray
good luck :wink:

kbartley

Question????????? How much boost does youre turbo make or planning to make? You may have to change the pistons in the bigblock anyway. IMO! If you are going to trade even what are you losing, sounds to me like you are gaining something. Do you think the 454 will run quicker then the 355 as it sits in youre car? Kris

cepx111

X2, what he said

txhunter69

well im just a beginner too but i have both a 350 and a 468 the bbc is in the shop being bored then im goin to build it up and put it in my truck because the guys on here gave me alot of helpfull advice on what to do bbc vs. sbc so ya just open your ears and listen they won't steer you wrong

Jordan1984

the turbo I have is a garrett GTA42, 74.5 mm turbo. Not to sure how much boost it will put out, but it is brand new and never been used. it is an internal wastegate setup. Was going to put it on my sbc but I know over 8 lbs boost will kill it. the 454 is already .30 over, been told that takes it up to a 468. it has stock reworked oval port heads, 615/636 lift cam, 296/304 duration. I think the turbo on it would scream. Any thoughts?

zipper06

Jordan i know we got off on the wrong foot, but trade the 350 for the b/blk, forget about the turbo, just run a 750 holly on it. 350's are a dime a doz. can be bought anywhere for $100.00 to $200.00 a 454 as mentioned before if it's gen 4 is worth $350.00 to $600.00, make the trade and smile all day long. It can handle 600HP with stock parts. I just built a 468 with all stock parts except heads runs 10.56@ 127mph in a 3700lb car.

JMO

Zip.