96 LT1 valve spring pressure
 

What’s the minimum spring pressure for a stocker with roller cam ?

Re: 96 LT1 valve spring pressure
 

It’s been a while since I had one but I think I had no more than 140lbs on the seat on the LT-1 I built. Probably less but I can’t recall. Single stock diameter spring with a dampener. Replaced springs after some time after finding brown dampners one day on some springs. Springs choices today are probably better. I am not even up on what’s legal in Stock as far as spring size.

Re: 96 LT1 valve spring pressure
 

I like Howard Electropolished drop in spring the best.
PN 98215

Re: 96 LT1 valve spring pressure
 

I used to run 175# minimum on my stocker.

Re: 96 LT1 valve spring pressure
 

I may have used those myself. That was 10 years ago. Can't really recall...

Re: 96 LT1 valve spring pressure
 

does anyone know the spring rule in stock now ?

Re: 96 LT1 valve spring pressure
 

Any valve spring, as long as head isn't modified.

Re: 96 LT1 valve spring pressure
 

The heads I have (96 LT1) I bought used. They had the Howard's Springs on them when I bought them. I have the PAC 1409X on it now. They are probably better but I can't say for sure one way or another. I have something wrong somewhere in the car and can't figure it out. Wish I could be more help.

I'm at 180 on the seat.

Re: 96 LT1 valve spring pressure
 

185 on the seat. Pac 1409.