Clevite H-Series Main Bearing - 0.001 in Undersize - Small Block Chevy MS-909H-1 13-RS1-B-XS Twin 65mm bore Throttle Body

Twin 65mm bore Throttle Body Opening for maximum airflow

Exceptional thermal and oxidation stability

Illustrated Parts and Specs

Aluminum Castings

The new aluminum medium dish structure allows the wheel to come towards the driver to facilitate the usage of aftermarket MPI hubs or quick releases

Clevite H-Series Main Bearing - 0.001 in Undersize - Small Block Chevy MS-909H-1 13-RS1-B-XS Twin 65mm bore Throttle BodyClevite 77 manufactures a full line of exclusive TriMetal? copper lead high performance bearings. Choose the bearing series which best suits the intended application. "P" Series Traditional Clevite 77 TriMetal? bearings have high crush qualities for maximum bearing retention, high eccentricity to account for bore distortion and reduced overlay thickness to prevent fatigue. "H HN" Series Race engine builders prefer their lack of fl ash plating, medium