madwolf

I'm getting ready to install an 847 cam with 1.6 Pro Magnum non-self aligning rockers and most likely 1 piece pushrods. I'm going to buy the rockers from someone who also has Comp Cams raised pushrod guideplates part #4800-8. He isn't sure if these will work on an LT1. Should I buy them or should I get something else?
Thanks!

Z95m6

i would pass on them. i have heard that people have a hard time getting guide plates to work on LT1 heads i got the GM guide plates from thunder racing at 2.50 a piece and they work great.

12SCNDZ

COMP does not make guide plates to fit an LT1!

The LT1 has .050" wider valve spacing than a typical SBC.

I'm using GM Performance Parts (GMPP) guide plates with my COMP 1.6 "Pro Magnum" non self-aligning rockers. They're less than $20 a set.

Frank

turbo_Z

my RRs came with guideplates that were supposidly comp and they didnt line up all that great.

R_Andersen

Madwolf,

Give cmotorsports a call. I used their guideplates and hardened pushrods. They were very inexpensive and valvetrain geometry came out perfect.

-Rob A.

shoebox

The guideplates I got from CM didn't line up the pushrods as well as the GMPP (p/n 14011051) ones do.

madwolf

Rob,
how many of these plates are needed? 8?
Any recommendations for locators? (i noticed you had them listed on the cam R&R page)
Thanks!

shoebox

Yes, 8 are needed. I used the stock locators with no problems with the CM (612's, I think) springs.

madwolf

Those are the springs I will be using as well. Do I need to order a new set of locators or can I reuse the existing ones?
(again, the reason I'm asking is because you had them listed in the "parts needed" section)
Thanks!

shoebox

There was nothing wrong with my original ones, so I reused them. I guess I have them in that list so that people won't forget that they should use them.

Dave88LX

Off-topic, but similar...it's been a while since I've seen my heads

Do they use push in, or screw in studs for the rockers?

R_Andersen

Screw in studs....