1.6348" OD, 0.643" ID, Valve Spring Shims, 50 Pk. | A-601-HP | B-601-HP | C-601-HP
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
Product Information
Product Information
Shipping & Returns
Shipping & Returns

1.6348" OD, 0.643" ID, Valve Spring Shims, 50 Pk. | A-601-HP | B-601-HP | C-601-HP
1.6348" OD, 0.643" ID, Valve Spring Shims, 50 Pk. | A-601-HP | B-601-HP | C-601-HP
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
Original: $28.99
-70%$28.99
$8.70Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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

















