badamn

Would it be possible using the same used crankshaft bearings to install forged pistons, rods and rings.For nitrous/supercharging app.(650 to 700hp.)I'm trying to bypass having to get a new crankshaft, install it and or get the old one machined and then have to get larger bearings.

KILLER-LS1

iTrader: (18)

you dont have to machine the crank or buy a new one, just make all the measurements and buy the appropriately sized bearings and re-use the crankshaft. it would be kind of foolish to rebuild an engine without putting new bearings in it...

also with new rods you will need new rod bearings as well. if youre going through all this work, it would be worthwhile to bring the block to a machine shop to get it at least honed and magnafluxed. that should only be a couple hundred bucks. they can install new cam bearings as well

Jontall

Strip the block and give it to a good machine shop to prep: http://www.sdpc2000.com/details/scog...nter/sun10-901. Then I'd just buy a balanced Compstar/Wiseco rotating assembly with bearings form Texas Speed-- $2300 http://texas-speed.com/shop/item.asp...d=885&catid=88.

TheBlueKnight

iTrader: (4)

I'm new to forged internals. But I don't understand why people would spend the money on a new crankshaft when everyone says that the stock LS1 crankshaft is good for 1,000 HP; and its the piston rods that give way and get thrown through the block.

With this logic can't you just get forged piston rods? Or do you have to get piston heads like the diamond pistons because the stock piston heads give way like the piston rods?

Beau@SDPC

iTrader: (14)

One of the main reason to get a new crank is to build cubic inches. The stock crankshafts have been tested to a good amount of power. But the rest of engine was prepped by professionals that have had alot of exp doing this very thing. Alot of people buy peace of mind when they purchase a callies or a lunati , etc. You are not JUST buying a name though. You are buying quality as well.

Sometimes people would rather buy a new crank than either chance their stock one, or have to get theirs machined. For quite a few people, turning a crank and using oversized bearings is not an option.

TheBlueKnight

iTrader: (4)

So it seems as though the most cost effective way to forge is piston rods, turning the crank, and over sized bearings. Don't really see a need for diamond pistons since no one has mentioned the stock piston heads failing right? Just the piston rods failing and getting thrown through the block?