Black X

iTrader: (9)

Hey guys has anyone installed these without doing a line bore/hone? Or does anyone know if a stock mainbolt can do 600RWHP? with RPM's in the 6800 range?

Thanks in advance

Black X

iTrader: (9)

anyone?

blue28

before I went forged I ran a 175 shot on top of 395RWHP @ 6400RPM several times(shift points @ 6800) and it looked fine when I took it out, I know it's not 600 but I'm pretty sure it would hold, might want to get some rod bolts if your engine is older than 2001, just because of the RPM's

Black X

iTrader: (9)

Thank you for your responce I do have arp rod bolts in it.

Black X

iTrader: (9)

bump.

twolfe

iTrader: (9)

I have heard from a couple sources that the main caps are only good up to around the ~600 HP mark. Since my long term goals were going to take me well above that I put in a set of billet steel main caps. I bought them direct from Callies. Of course for every person like me you will find somebody that has gone above that amount with no problem. I just didn't want to take that kind of chance. Something for you to think about before you bolt it back together.

Shinobi'sZ

I made over 800 rear hp/tq with my latest setup and all previous setups I used the same motor....my main caps looked fine....lsx is a beast of a block design...but I am considering using ARP studs instead of GM bolts....and maybe a cradle too.

Ryne @ CMS

iTrader: (10)

i made 739rwhp 791 rwtq, with stock bolts, and caps with my 408 on a 200shot, although it was a iron block. took it apart everything looked normal.

Brian Tooley Racing

iTrader: (13)

I did it, the key is no detonation. I made 600 RHWP and went 9.80's, then picked it up another 96 RWHP to make 696 RWHP total and never hurt the engine.

motorbuilt

iTrader: (17)

SR71 went high 8's on stock caps and main bolts...

slow67

iTrader: (2)

Harlan has been 8.0X at 1XXX HP with stock block, caps, crank, and heads

https://ls1tech.com/forums/forced-induction/113639-details-my-setup-those-interested.html