Chevy SB 283 327 350 400 HP Set Z28 Valve Springs & Retainers & Steel Locks Kit

Description

Valve Spring Set of 16, .550" lift valve springs, 11/32" 7° degree steel spring retainers, and 32 hardened 11/32" 7° degree valve locks.
Set of 16 Z28 Springs for Small Block Chevy 1955-1993 283 305 327 350 383 400 with cast iron heads good for stock application, towing, and most mild performance cams up to 0.550 lift
Valve Spring
Specifications:
OD: 1.260"
ID: .785
Closed: 114lbs @ 1.710"
Open: 318lbs @1.210
Coil Bind@: 1.160
Spring Type Single with damper
Valve Spring Retainer
11/32 X 7 degree
1.200x .860
Valve Lock
11/32 X .377 X 7 degree single groove