Valve Springs ????'s

[dickeymoore]

I have a set of Trick Flow aluminum heads(part#TFS-30400002)for a SBC engine and the springs are 1.470"o.d., [email protected] open with .540" max lift and I was wondering will these springs work with a HYD.ROLLER cam with .520"lift? ANY HELP

 

[SSedan64]

They may be fine. Most Co.s' Heads will use the same Springs for Hyd. Flat Tap & Hyd. Roller Cams. Always check the Cam's recommended/suggested Spring rates tho'.
I use slightly higher Closed & Open Spring pressures for similar size Hyd. Rollers because the Roller Lifters are heavier. Many times just Shimming will be enough to work.

 

[bracketchev1221]

I would say no. That is way too close for me. When I put my roller in the Nova, it's .535/.550 I used a 155seat 410 open spring.

 

[psychomotors]

Call Trick Flow?