Engine Kits

Speed Pro VS1581 Chevy Big Block Performance Valve Spring
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Speed Pro VS1581 Chevy Big Block Performance Valve Spring



Part #: VS1581
List Price: $24.04
Our Price: $12.02
You Save: $12.02

Availability: In Stock



Speed Pro Chevy Big Block Performance Valve Spring with a 1.460" O.D. good to a .590" max lift.
Valve Springs represent the most commonly overlooked item when rebuilding your engine or replacing your camshaft. A new cam offers limited performance improvement if you have weak springs. It is always a good idea to check your springs or replace with the recommended aftermarket spring.

 

Specifications
Type . . . . . . . . . . Performance Valve Springs
Position . . . . . . . . Complete  Assembly
O.D. . . . . . . . . . . . . . . . . . . . ...1.460
Max. Lift . . . . . . . . . . . . . . . . .. 590
Closed Pressure (Lbs.) . . . . 105
Closed Height . . . . . . . . . . . . 1.88
Open Pressure (Lbs.) . . . . . 338
Open Height . . . . . . . . . . . . . .1 .25
Coil Bind Height . . . . . . . . . . 1.200
Approx. Rate/inch . . . . . . . . . 370
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Type . . . . . . . . . . Performance Valve Springs
Position . . . . . . . . . . . . . . . . . Inner
Closed Pressure (Lbs.) . . . . 29
Closed Height . . . . . . . . . . . . 1.78
Open Pressure (Lbs.) . . . . . 118
Open Height . . . . . . . . . . . . . .1.15
Approx. Rate/inch . . . . . . . . . 140
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Type . . . . . . . . .  . . . . . . Performance Valve Springs
Position . . . . . . . . . . . . . . . . . O. uter
Closed Pressure (Lbs.) . . . . 76
Closed Height . . . . . . . . . . . . 1.88
Open Pressure (Lbs.) . . . . ... 221
Open Height . . . . . . . . . . . . . .1 .25
Approx. Rate/inch . . . . . . . . . 229