NONO5.0

I have the LT4 hotcam with Thunderracing valve springs (older type that I don't think they carry anymore; was good to a .550 lift) I broke one and was thinking of going with the LT4 valve springs. Can I install them on my LT1 heads w/o any machining to the head? I can't find any specs on just the springs themselves and I'm not sure of the size of them. How big of a lift do they support?

Thanks for any help!

96z

They will fit just fine. They also are good to .550 lift I believe.

NONO5.0

Great! That's what I needed to know!

Thanks alot!