Block Parts Express

We make and carry a large selection of custom made specially hardened 410 stainless steel (24-28 Rockwell) counterbore shims as well as cast iron
Remove the weak point of stacking shims, reduce crush, reduce downtime and constant repairs and comebacks

Shims for every size of cylinder bore

410 STAINLESS STEEL
24-28 ROCKWELL

Custom made shims
25 Sizes in Stock
Made to measure-any size, any time
Cummins Cat Detroit
Salvage Sizes Available

Price List

You will not find a better product at a better price!

Our products are made with a specially hardened 410 Stainless Steel material (24-28 Rockwell) which reduces crush issues