I am running stock GSR cams. The only reason I'm buying new is because I am building my motor with forged pistons/rods, and new springs/retainers/valves and figured I might as well buy new lma's. I can run OEM but the price tag is appealing on S2 and SoS and if I can save a $, great. So what are your opinions?

 

I've ran SOS Lma's and had no issues reving out to 10,500 rpm with them. Never used the S2 one's before.

 

Never heard of any issues with the SOS LMA's.

HAVE heard of more than one issue with the S2's....

 

never had any issues with my shimmed h22 spring types. i payed like 30 bucks new for them

 

Cool, except you can only get one from the dealer at that price... You need eight.