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Beehive style springs1.800" installed height @ 90 Lbs pressureSet of 16 - 12625033 Used on LS2 / LS6 headsMax lift .570"1.250" Height, 295 Lbs pressureUse with cap 10166344 and keeper 10166345
These are also the same spring used on the new Chevrolet Performance small block Chevy Fast-Burn cylinder heads.
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Chevrolet Performance Parts - PAC-19420455-M - CPP Performance LS Engine Valve Spring Kit (set of 16)
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Chevrolet Performance Parts - PAC-19420455-M - CPP Performance LS Engine Valve Spring Kit (set of 16) 
