I cannot get a vendor to split-up the Proform Chromoly stamped, roller-tipped self-aligning sets of 16 rockers. I need 8 of 1.5 and 8 of 1.6 ratio.

My question is, does someone else here need the same??? ie, 8 of Proform P/N 66926c and 8 of P/N 66927C SELF-ALIGNING roller-tipped rocker arms, 1.5 and 1.6 ratio, respectively?

Like $130 for a set of 16. Eddie needie... in my case this combo will help a ZZ4 cam go from .475"/.510" lift to 505"/.510" lift, that is why I need them. They also reduce friction at the valve stem tip and reduce valve guide wear CONSIDERABLY as the lateral loading on the valve stem is reduced as a result of the reduced valve stem tip friction.

You only need them if your lift on the intake is too small OR if you have a single pattern camshaft (same intake/exhaust lift and/or duration) and youwant to help the usually-feeble exhaust ports out a little by running 1.5's on the intake and the 1.6s on the exhaust side.

Doesn't hurt to ask...

 

Man, if my cam were a little smaller, I might take you up, but I'm thinking of getting some Vortec heads...

 

your cam doesn't need 1.5/1.6 treatment. Good cam. I remember...

pls don't reply unless you want to split 1/5/1.6 rockers. i will front the scratch.

 

Fastbroker,

I have been thinking of doing a split on rockers. I currently have a set of Crower Stainless Steel full Roller and would like to upgrade the intakes to 1.6
Currently, my cam profile is a 212/218 488/495 with 112d LSA. The TFS 23d heads have a stall speed of .500" so I would like to maximize the intake side. If you are interested let me know. Th 1.5's I have have about 3000miles on them. BTW, they fit under the stock Xfire valvecover.

 

Are they SELF-ALIGNING??? I need self aligning...



If so, I am very interested. Call me at work Monday, tomorrow, i f you can between 9:30 and 11:00 Eastern, toll-free at 1-800-833-3405, Ed Hovan. I'd liek to maybe get the 1.6 Crowers to match???

 

Going once...


I'll front the money and pay the shipping to you house!!! (big spender)

 

Going twice...

 

Fastbroker,

Did you see these?
http://cgi.ebay.com/ebaymotors/aw-cg...item=599697926

 

Thanks, Dom!



Will they fit under centerbolts??? I assume so

 

Ed,

Let me know how you make out. One of the reasons I chose the Crower Stainless Steel rockers was because they would fit under the stock valve covers. Mine are perimeter bolt but with a slight pinch of the PCV valve area, the fit fine without hitting the oil drip casting.

 

Those Ebay Crowers ended in a seller ending the auction prematurely. Crank head.

When we spoke the other day, I neglected to tell you that when youa re checking your valve-to-piston clearance, you should install very weak "installed-height" valve springs wihch make the job easy to do with your fingers, aftre you go through the trouble of changing valve springs with the heads on,, that is.

 

Ed,

Thanks. I think I'll have plenty of room for clearance. And I'll be doing the intake side so that's less critical.

 

Ed,

Just checked with Summit. Crower sells half-sets of rockers so you can mix and match. I just picked up a set of 8 of the 1.6 Stainless Steel Full Rollers. $212

 

http://cgi.ebay.com/ebaymotors/aw-cg...item=599789971


I couldn't wait for help. I bought these and called them and bought some 1.5's as well. thanks.

 

Ed,

I would have bought the CompCams ProMagnum if I hadn't already had a set of the Crower 1.5's. I bought them largely because I wanted to make sure they fit under the stock valve covers and that's what Gary Grimes recommended. I didn't want aluminum because of the fact they thrash themselves to death eventually. Good luck with the Comps. Looks like I'll have half a set of roller rockers to sell. I've also got a full set of CompCams
Magnum roller Tip 1.6 rockers that are in excellent shape.

 

I'm not big on Aluminum, either. Not long lasting.

These Comps are a new SA design, rebuildable and stainless. go to page 267 (??) of their online catalog and they actually have a picture of them at the botom of the page. That picture in the Comp catalog sold me. They were $320 everywhere else I checked. Hope they don't rip me off!!!!!!!!!!!