ACL Bearings Race Series Main Bearing Set - Standard - Extra Oil Clearance - Coated - GM LS-Series 300-245 the RZ-38 DIRT features a Size:12 Wide STIAA0114AF2640101 Resist Carbon Tracking 5846-001

the RZ-38 DIRT features a lightweight composite fiberglass shell and the all-new 29 Series interior — fully removable and washable — allowing drivers to refresh or customize their fit after intense racing conditions

Replacement 3/8" NPT thread-in temperature probe threads into water jacket port

Featuring a quicker valve opening

Bolt-in installation

ACL Bearings Race Series Main Bearing Set Standard Extra Oil Clearance Coated GM LS Series 300 245 the RZ 38 DIRT features a Size:12 Wide STIAA0114AF2640101 Resist Carbon Tracking 5846 001 the RZ 38 DIRT features a lightweight composite fiberglass shell and the all new 29 Series interior — fully removable and washable — allowing drivers to refresh or customize their fit after intense racing conditions Replacement 3 8" NPT thread in temperature probe threads into water jacket port