Ok i have a ls2 with forged pistons and rods.. stock crank... d-1 procharged. I know i need head studs.... but do i really need main studs .. i mean these blocks are 6 bolt mains.. im used to the old BBC 4 bolt mains being the good ones. Do i need main studs with the power im making thanks

 

To do it right the main studs need to be installed prior to align boring the main bearing passages. If I were building a motor I would never build it without using main studs, but since yours is already built id leave it as is.

 

well i havent put it together yet.. i just have piles of parts tring to get everything together to put it in my 68 camaro.. the studs are so dang exspensive though camparied to small blocks and big blocks

 

IIRC, BES built an LSX for the Engine Masters Challenge and used stock GM main bolts. You're probably okay with them, but main studs and a good align hone would be better.

 

It's not a must for what you are doing. I have seen stock mains go well over 1000 HP without an issue. However, I personally like to use the ARP mains just for some added insurance and peace of mind. If you change them, definitely get it align honed! It's not a bad idea either way!

Jon

 

Yeah i guess ill see if i have the extra cash. ls1 parts are so much more expensive than first gen bbc sbc

 

Wait till you price a set of LS head studs - again far more than BBC stuff.

 

Just me personally, but I cringe every time I think about steel bolts being torqued into aluminum threads. I'd much prefer a finger-tight stud with torque applied to the nut.

 

I hear you there. i wish i went with an iron block.... but i wanted the power to weight in my 68 camaro