aarontracy

ok i just ordered my cc503 cam w/lifters & timing set. all i really need now is a good set of 1.6rr's and some valve springs.

i plan on getting comp pro mag 1.6 rr's but do i need 3/8 stud or 7/16? also should i go with NSA or SA? if i go with NSA what kinda of guideplates are recomended?

ive been looking at the comp behive springs also. will the behives go directly onto my stock heads or do they have to be worked to make them fit? or should i go with a different spring all together? i plan on reving to 6k max.

also if anyone has any of this for sale let me know!

Joe B

To tell ya the truth, If your going to spend the $250 "or so" for the really good Pro-Mag rockers...then IMO there's really no reason not to get the rockers for 7/16 studs.....7/16 studs are much stronger and have way less flex..... if your interested in a "way" more reliable set up, go with the NSA rockers and guideplates.....with SA rockers, all you have is little cast on tabs on the underside of the rockers to stop things from going bad.....the GM guideplates are a good piece......Beehives would fit fine, and they'd be my choice.........Also don't forget to get a high quality pushrod if you go with the NSA rockers and guideplates.......Comp cam's Hi-tech brand is really good, but kinda expensive......summit's brand of 80thou wall thickness pushrods are also good.....and quite a bit cheaper..........good luck...........Joe

Mkos1980

I went with Trickflow Pushrods for my Formula and the Summit Brand on the Camaro. I love both.

SStrokerAce

Joe I knew I liked ya.... even if you have one of my cams


PS Mkos1980 Summit owns Trickflow

truedualws6

Here we go again with the broken record>>>

Parts needed to install Comp 26918 beehive springs on a stock
aluminum head LT1 (for iron heads just omit the spring seat).

7 degree hardware with 4705-16 spring seats (1.73" installed
height):

787-16 retainers
648-16 locks

10 degree hardware with 4705-16 spring seats:

795-16 steel retainers, or
794-16 titanium retainers
611-16 locks (standard), 1.70" installed height, or
614-16 locks (+.050), 1.75" installed height

For either installation you will need spring seats:

4705-16 spring seats, .062" thick

The CC 503 will be .544" on the exhaust side with 1.6s, and the
beehives coil bind at 1.085". Allow .100" safety factor to coil bind
and this puts you a 1.185" maximum open.

1.73 - .544 = 1.186 (7* hardware)
1.75 - .544 = 1.206 (10* hardware w/ .050" locks)

All of this is from mock ups I did on my car, so you should thoroughly
check things on yours to verify you have the safety factor to coil bind,
as well as retainer to oil seal clearance, etc.

Joe B

............By the way Bret, that cam is working Awesome.......