Well I have a set of BOTH in 3/8 laying at my feet right now. I am going to sell a set , and use a set on my 4.3 v6 syclone engine since it wont rev past 6000 rpms (going 7/16 NSA w. g.plates on my 327 and the lt1 afterall).

I read that the gmpp ones are 30% stiffer because the rocker stud slot length is reduced, and its obvious when you put it next to the crane golds.....the only thing is doesnt that make them HEAVIER?!

Also, the crane golds seem to have a bigger oil hole, and a little more clearance under the tip, like 1/16", but are they weak?

The golds can accept a 1.63" max spring diameter, and the gmpp only 1.45" with a max of .575 lift ... dont know the max lift on the golds but I bet it would be higher. I am going to about 6K redline and .520 lift with my cam.

The gold I have are used and the gmpp ones I have are new.

Here are pics so you can see the stud slot length differences. THANKS FOR YOUR OPINONS AND POSTS :

 

Sell the new ones, you will get more money and either one will work for ya.

 

Good idea about the $$$ , thanks ---

 

Do we have centerbolt valve covers? Are these the narrow body ones? What type of modification do I need to do if they are going on some centerbolt covers and these arent the narrow ones? Thanks ---

 

cut out the support beams inside the cover...that's all.

search ebay for c4 vette covers...not lt4 or you'll be paying more than you need. they all came with the carbon covers just the lt4 ones are painted or something....but mostly look at the corvette ones. they dont have the beams and are carbon fiber.

 

Carbon fiber? I don't think so. A composite material, yes.

 

93-96 vette LT1 and LT4 covers are identical.

 

Awesome, thanks for the advice guys ---

 

that's what i'm saying.....they're the same you'll just be paying more for the "lt4" ones.

composite was the word i was looking for.....just carbon fiber is what came out. i've been doing a lot of research because i'm looking at making my own bumper and fenders in CF...possibly door skins as well.

 

The Crane Golds are fine for over 0.576 lift....

 

Most def. Sell the new ones like stated earlier. And clear your pm box...

 

I have the new lt4 gmpp 1.6 3/8 rockers for sale in the classified on this site for $230 shipped, THANKS---

*and pm's cleared