ryanewing88

I have a 347 with either a cracked piston or a bad ringlet (don't know, haven't pulled the motor yet). Either way, I need a new motor. I've pretty much decided against getting a used SB and to continue with my goal to supercharge. Obviously the blown motor sets me back.

My question is, do I go with a forged rebuild (done locally for around $3k) or go "off the shelf" with someone like TSP for $4000 plus shipping?

Are there alot of problems with rebuilt motors with around 14-15 #s of boost?

I'm looking for alittle more than "its personal preference". Any knowledge from similar experiences would be helpful. thanks.

ryanewing88

Correction: I currently have a stock LS6 (346) not a Forged 347. my mistake on the number.

Pipelayaz

iTrader: (2)

I would just make sure you take it to a good local shop to blueprint your set up and dye your block for cracks and reuse it. As long as your rotating assembly is good 14-15lbs. is fine. And don't get eagle rods.. That's my two pennies..

99VetteFRC

Get cheap lq4 bottom end and stroke it and add forged internals. Bulletproof for boost.

82cetuner

iTrader: (9)

true a iron block will be stornger but for 14-15 you can run that on a aluminum block, forged pistons and rods is whats important, the crank can be re used unless you want to put down more than 700 to the wheels

you could also get a stock 4.8 and boost it over 20 psi like gm performance did, and make over 1000hp