Who makes the best..?
Or I guess I should say who has the leased problems

Current cam is 218/224 563/568 114LSA going to keep it and run SC,

I am using the Manley 221423 spring now on my LS1 heads
but need new ones for my 6.0L truck heads.

Thanks

 

i have a friend who is using comp 918"s with his s/c , the thing makes mad hp , and he is real happy with "em

 

i run my 918's everyday past 6500...no probs yet.

 

My vote is for the Isky 295D

 

What spring rate do 918s have?

 

Is the comp 918 the full part number?

 

my vote is for the Isky's.

 

The Comp 918's are rated up to .600 lift
and the full number I believe is Comp 26918

 

Hmm, thats a tough one... Oh Isky's!

 

How about K-motion? Their K-750's handle .610 and are dependable H-11..

 

Can the 918's or the Isky's be used with a stock cam in a 99 ls1 or do the work better w/aftermarket cams?

 

Stay with the Manleys