[fiedlerh]

In the late 1970's I bought a set of H-O racing VS-11 valve springs. Never used them. Don't remember what the specs or intended application was, do you? They appear to be street springs for a hydraulic cam, but no idea what the installed height or K factor is. Anybody know?

[STEELCITYFIREBIRD]

I have their old catalog from way back. I'll be in it in the next week, will get the application and specs for you.

[b-man]

I have a set that were purchased a little over 20 years ago, I plan to use them on my 1964 421 HO, most likely at the 1.530" installed height that was last used for the 1964 heads. Here are the specs from the information sheet that came with the springs:

INSTALLATION DATA: VS-11 Valve Spring

This valve spring will accept .550" net lift and can be installed on all stock Pontiac heads without modification for these installed heights:

Tension @ Lift (New)

Installed height - 1.530" Seat - 127 .450" - 254 .500" - 267
------------------1.560"--------124--------247--------259
------------------1.590"--------120--------239--------254

[fiedlerh]

Thank you!