1967 Through 1979 Pontiac STOCK REPLACEMENT Valve Spring Kit
SB International Part Numbers 16 Of Each

160-1136 Inner + 160-1137 Outer

Fits Pontiac 326 350 400 455 428 From 1967 Through 1979
Except Ram Air ,  Except 1967-1970 With Factory Manual Transmission
Message Us With Any Fitment Questions

SPECIFICATIONS

160-1136 Inner Spring

1.060" OutsideDiameter
0.776" Inside Diameter
1.760" Length
0.950" Solid Length
0.142" Wire Diameter
A877 Material
102 Lbs @ 1.114" Open Pressure
31 Lbs @ 1.566" Closed Pressure
6.75 LH Turns / Direction

160-1137 Outer Spring

1.398" Outside Diameter
1.058" Inside Diameter
1.940" Length
0.990" Solid Length
0.170" Wire Diameter
AS33 Material
140 Lbs @ 1.134" Open Pressure
62 Lbs @ 1.586" Closed Pressure
5.80 LH Turns / Direction

These Are A Stock Replacement DROP IN Spring No Machining Required

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