64pcs Valve Springs Kit w/ Steel Retainers Locks compatible for Chevy SBC 350/400/Z28

Application

For complete set of valve springs for GEN I and II Small Block compatible for Chevy (not for vortec) engines.

Specification

VALVE SPRING SPECIFICATIONS
Outside Diameter: 1.259 in.
Inside Diameter: .876 in.
Compatible for Seat Load: 110-lbs. at 1.700 in.
Open Load: 285-lbs. at 1.210 in.
Coil Bind: 1.160 in.
Free Length: 2.040 in.
Spring Type: Single with damper

RETAINER SPECIFICATIONS
Outside Diameter: 1.240 in.
Step 1 Diameter: .860 in.
Step 2 Diameter: .645 in.
Stem Diameter: 11/32 in.
Lock Style 7 degree
Material: Chromemoly

LOCK SPECIFICATIONS
Stem Diameter: 11/32 in.
Lock Style: 7 degree
Lock Groove Type: single groove, square
Lock Material: Hardened steel

Package included

16×Valve Spring
16×Valve Spring Retainer
32×Valve Locks
( as shown in the picture）

Description:

Valve Spring Specs:
Max Lift: .550"
Type: Single W/ Damper Valve
Material: Chrome Silicon
Spring Diameter: 1.250"
Installed Height: 110# @ 1.700"
Open Load: 285# @ 1.210"
Retainer Specs:
Lock Angle: 7 degree
Material: 4140 chrome moly steel
Notes: heat treated; black oxide finish
Lock Specs:
Groove: Single; square
Notes: heat treated
Professional Installation is Highly Recommended (No Instruction Included).