I found Nick's thread informative so I thought I'd put up another post to learn a little more.

I snapped a pic of the valve springs, seals and retainers I have sitting in my garage. The seal on the left is the intake seal. The two on the right are the exhaust seals. The natural color = one diameter, the black = a second diameter depending on the size of the valve stems used. The plastic bag contains 16 oil stem seals.



Here are the specs:
Springs - GMPP #3927142 - single spring w/damper, 1.273" OD, 110# pressure @ 1.70" installed height.
(Notes: Use with camshaft #3927140 and all high performance production cams to extend RPM range.)

Retainers - GMPP #14003974 - 1 3/32" diameter, used on ZZZ, ZZ1, ZZ2 350 HO and 350/300hp engines.

Seal Kit - GMPP #12511890, late model V8 seal kit.

My original intention for buying these springs was to use them to rebuild my L98 heads and extend the RPM range. I had also planned to install the LT4 Hot Cam. However, I no longer have plans to rebuild my factory engine.

Everything is brand new GMPP and still in the packaging. I picked up all the parts for $100.

Anyone have any further input/info. on these springs?

 

one of these day Brett will actually have built another car from all the parts he's bought and collected but has not or will not ever install....

 

Just be patient my blue friend. The white rocket will be harassing you soon enough.

 

I'm up for the challenge. I picked up some parts in the last couple days (moog, baer, etc.) and had my PS gearbox rebuilt by Lee. Perhaps I'll take a few pics so you can see how they install on a vehicle

 

I still need to talk with our friends at Moog. Once I've done that it will be about time for Installapalooza and an appointment with the alignment shop.

Oh, and here's a pic of my car so you can remember what it looks like:

 

I can't remember what I've never seen....or will ever see

what size wheels/tires will you be running? I just need to get some Koni shocks and I should be set for now in the suspension department. I figure with my free trip to willow and a couple passes around Mike, he'll be forced to put on his superam combo like he promised.

 

As soon as you start looking like this I’ll reach for the piggy bank….

 

...

 

 

[Thread Hijack Complete]

 

True. You will only see it briefly as it disappears in front of you.

Quote:

what size wheels/tires will you be running?

I'm just running the factory 16x8's with BFG G-Force KDWS's. Eventually I'll step up to 17x9 or 9.5's, but that will be $2k just for the rims so that's low priority right now.

In the meantime, I may try to pick up some inexpensive wheels I can put some race tires on.

And who says I don't install any of my parts.