LS1GQ

Hey guys..
Ive got an ls1 that i bought a while back for my race truck..
Im currently in the process of having an auto built for it..
But to get the convertor right i need to know the cam specs..

On the back of the cam it has.
LS1 3719R/3719R
Hr110
F3724-05

Any help would be awesome..

Thanks jeff

mr.beachcomber

If you don't get a response, your best bet is to degree the cam itself to set what you have for lift, duration, and overlap. Even if you do get the factory specs, it's still a good idea to degree the cam just in case the prior owner advanced (or retarded the cam) to suit the intended use of the engine.

Good Luck!

JimMueller

iTrader: (9)

https://ls1tech.com/forums/generatio...o-has-one.html

According to the info in that thread, it appears to be a Comp Cams Extreme RPM series (XE lobes).

http://www.compcams.com/Technical/Ca...obeCatalog.pdf

Page 3 says the R suffix means it is for a 55mm cam journal.
Page 17 in the above link says a 3719/3719 is a 232/232 .575/.575 @ 1.7" rocker ratio.

It's possible the 'Hr110' means one of the centerlines is 110 but I don't definitively know. While I've never done it personally, I seem to recall reading that you can determine the valve events from degreeing the cam, and from there calculate the ICL, ECL & LSA.

LS1GQ

Thanks guys i really appreciate your help