Sneakin Deacon

ive been lookin at alternatives to build an affordable, but stout bottom end...so it kinda throws a 355/383 setup out..its a blower motor, but i want a forged bottom end. now i remember a while back, i had read on here that some people were using the ZZ4 cranks i think, and that they were like 300 dollars, and forged from the factory...

i went to gmpartdirect.com and looked and found the crank, but it says for use on gen2 zz4's only...so, is that just like company ploy or what? and is there really a 300 dollar forged 3.48" GM crank? cause these were listed as like 650.

SStrokerAce

The GM ZZ4 Crank 12556307 can be used in a LT1 motor. It's a 1053 forging vs. a 4130 or 4340 which are stronger.

Actually your stock LT1 crank takes a royal beating and it's the strongest production SBC cast crank out there. I would stick with it and put light rods and pistons above it and have at it.

Bret

Sneakin Deacon

eh, i dunno if i would trust it to 600+fwhp...im lookin to make 500+rwhp on stock cubes, are the Eagle cast steel cranks better then stock? i can get dragonslayers for ~650 but that kinda breaks the wallet, but i would have the piece of mind to hold some big power.

96capricemgr

Guys are making that power on stock cranks.

SStrokerAce

Well depends on how much power you want to make....

A Eagle 4340 crank is stronger than the LT1 block so that's really the weak link.

Bret