A-305-HP : B-305-HP : C-305-HP : 1.437" OD, 0.785" ID, HP Valve Spring Shims

A-35-HP : B-35-HP : C-35-HP : 1.437" OD, .785" ID, HP Valve Spring Shims

A-35-HP : B-35-HP : C-35-HP : 1.437" OD, .785" ID, HP Valve Spring Shims

Use these Valve Spring Inserts to support valve springs better. They won't compress to maintain pressure and protect heads from spring abrasion.

Three thicknesses are available:

.060" - for springs in service
.030" - for new springs
.015" - for balancing

Add to cart

Order No.	Description	Price	Quantity
A-305-HP	.060"	$19.99
B-305-HP	.030"	$19.99
C-305-HP	.015"	$19.99