VSH3 Pontiac PERFORMANCE valve springs 400 455 389 350 428 GTO Firebird

Description

Pontiac V8 1965 to 1979 HIGH PERFORMANCE valve springs
Also see my other auctions with springs retainers and also with locks
Does 1 pair of Pontiac D-port cylinder heads auction is for: 16 new dual spring HIGH PERFORMANCE valve springs High quality stock replacement dual spring valve springs FOR HIGHER LIFT CAMS. Parts used and manufactured for Pontiac engine builder and guru, Spotts Performance
I have a video on youtube under spotperf on how to install these springs and check clearances The dual valve springs are “drop in” on 1965 to 1979 Pontiac D-port factory heads(except early SD, some 67 Ram Air). You do not need to machine the springs pads like required on other company valve springs, like Comp Cams These are good for performance cams with up to .600 lift  Make sure your machine shop is competent in checking clearances or see my video Spring specs: They install at 1.600 to 1.625 height. .950 coil bind – you need need/should have .080 from coil bind Closed spring pressure is 100-115 lbs.   Do not use steel shields. I recommend positive valve guide seals – check my other auction for those This kit is for hydraulic flat tappet, hydraulic roller and solid flat tappet cams with less the .600 lift. NOT for solid roller cam These springs are for: 068high lift cam with taller rocker arms like 1.65,  041 RAIV the HCP01 and other cams  See my other auctions for high quality Pontiac cam and lifter kits Free shipping!