Product ID: TA_V1436 Stock Valve Spring, V6 Production Iron Cylinder Head | Details (http://www.taperformance.com/proddetail.asp?prod=TA%5FV1436) |
Ideal spring for most street strip 225-231-252 V6 applications. O.D. 1.260 110 lbs @ 1.727 280 lbs @ 1.227 Coil Bind 1.115 |
I'm gonna go buy one Sealed Power VS739R from napa today for $6 and see what I get for poundage at 1.727 on a spring tester. They are rated at 104 lbs at 1.7" so Should be around 95 - 96 lbs at 1.727"..I'm not there yet of replacing the valve springs, but do read your research on them.
If that's the case I might just go with them and return these 980's. Figure after they are settled in they might drop to 92 lbs.
I keep reading bad things about the 980's and this way I don't have to shim the VS739R''s.
The turbo buick guy thats gonna install them for me usually uses K motion K700's on stock cams and they end up around 108-110 seat pounds at 1.727. I thought that was a little much.
Yes i'm a little paranoid about doing them myself.