maxgee

iTrader: (5)

I'm looking to turn the boost up and go for 650rwhp and curious if the rod bolts will hold this power? I'm sure there are exceptions where guys have bend them a lower horsepower levels, just want to know if you bent yours, what rwhp did you have and how often you stepped on your car?

tiznodd

iTrader: (4)

My understanding is that it's not the rod bolts themselves that have an issue with a particular power level, but rather the rods. The rod bolts are more of an issue with how high you rev the engine before they stretch.

There is someone with a GTO on here that has an LQ9 (same rods as LS2 I believe) that is at 825 rwhp, so I would assume 700 would be somewhat doable, pending a good tune.

maxgee

iTrader: (5)

hey, thanks for the info. i'll keep my revs under 6600.

98Z28CobraKiller

iTrader: (17)

The problem is that the rod bolts stretch and then it's game over for the block and possibly the heads too. 6600 RPM is way too high for the stockers at that power level IMO. Might live on a dyno but on a full 1/4 mile pass, you will likely air condition the motor. I would try to keep it around 6K or put in a set of ARP's in them.

maxgee

iTrader: (5)

Really 6600 too high on ls2? hmm, i'll look into it. thanks again.

LTX355

iTrader: (15)

I dont think 6600 is that high... Im building a 370 now using ls2 rods because some of the affordable forged rods are rated less then what the ls2s have stood up to. I think your safe as long as tune is good. I will be testing the strength of the ls2 rod with nitrous.

look here https://ls1tech.com/forums/generatio...-strength.html