Valve Spring Specs
Thread Starter
Melting Slicks
Joined: Oct 2001
Posts: 2,075
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From: Central NJ
Valve Spring Specs
I was wondering if anyone has stock LS1 valve spring specs, and was wondering what RPM they start to float, also differences between the different model years.
Thanks,
Artie
Thanks,
Artie
Drifting
Joined: Dec 2000
Posts: 1,516
Likes: 0
From: Shelton CT
Cruise-In II Veteran
Re: Valve Spring Specs (NJVetteGuy)
Hi there,
Valve spring free length 2.08 in/52.9mm
Valve spring pressure(closed) 76 lbs@1.8 inch 340n@45.75mm
Valve spring pressure(open) 220lbs@1.32 inch 980n@33.55mm
Installed height 1.8 in 45.75mm This is for both intake and exhaust
The upper specs are LS1 classification only.
Float, I am told 6500, however, there is NOT a published spec for it.
Besttoyou, c4c5 :chevy
Valve spring free length 2.08 in/52.9mm
Valve spring pressure(closed) 76 lbs@1.8 inch 340n@45.75mm
Valve spring pressure(open) 220lbs@1.32 inch 980n@33.55mm
Installed height 1.8 in 45.75mm This is for both intake and exhaust
The upper specs are LS1 classification only.
Float, I am told 6500, however, there is NOT a published spec for it.
Besttoyou, c4c5 :chevy
