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BIG-BLOCK V8 VALVE SPRINGS QUICK REFERENCE CHART

Part Number

Description

Outside Diameter

Pressure at Installed Hgt

Solid Hgt

Pounds per Inch

Retainer Part Number

Notes

3970627

Dual

1.487"

105" @ 1.88"

1.28"

4 5 0

3964264

Used with high-performance 396/427/454 production engines; LS-6.

3916164

Dual w/damper

1.487"

116# @ 1.88"

1.10"

3 1 7

3879613

Used with heavy-duty 427/454 engines; L-88, ZL-1, LS-7.

3989354

Dual w/damper

1.538"

128# @ 1.90"

1.26"

3 3 0

3989353

Used with camshaft P/N 3994094.

14097002

1.487"

110# @ 1.88"

14096274

Used with 454 and 502 HO Engines.

12462970

Dual spring

1.514"

140# @ 1.940"

1.20"

3 6 8

12366990

Used with 502/502 engines.


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