Ford 302 351 Cleveland Main Bearings Race H-Series Standard Size Extra Oil Clearance 351C (393 & 408 )

Ford Cleveland Main Bearings H-Series Standard Size Extra Oil Clearance 351C

Main Bearing Set, H-Series, Standard, Extra Oil Clearance, 

• USAGE: Performance
• Size:  Stock
• 1/2 Grooved Bearing - Upper
• Material: Tri-Metal - TM-77
• Set of 5

Clevite H-Series main bearings were developed primarily for NASCAR racing, but are well suited to other types of competition engines as well. They're especially good for engines that run at medium-to-high revs. They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity. H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. They are also available with either 180 degree or 360 degree oil grooves, as well as an extra 0.001 in. of clearance.