LS1 shortblock HP limitations

**blowerguy** · 04-18-2010, 08:00 PM

04 GTO..........

how much RWHP is a "safe" bet? 600RWHP ok? That's my goal, previous owner took it to 468, so a little spray is all I need.

**JRENIGAR** · 04-19-2010, 07:16 AM

I have heard the factory rods can handle 550hp but looks like its already done that. Hell, try it you will deff know when its too much.

**danziger** · 04-19-2010, 10:59 AM

Did 576rwhp/590rwtq for a while on the stock bottom-end with a H/C/N set-up before finally pushing a head-gasket. When torn down, the short-block still looked awesome.

**blowerguy** · 04-19-2010, 05:57 PM

Originally Posted by danziger

Did 576rwhp/590rwtq for a while on the stock bottom-end with a H/C/N set-up before finally pushing a head-gasket. When torn down, the short-block still looked awesome.

that's the info I was looking for

THANKS