BBC 454 Connecting conrod Rod Big End Bearings, Race H-Series, Extra Oil Clearance, Narrowed, Big Block Chevy

Big Block Chevy BBC 454 Conrod Bearings, H-Series EXTRA Oil Clearance

FULL SET OF 8

*NARROWED AND EXTRA OIL CLEARANCE Big End Bearings.

Suit the 454 Big Block Chevy Big End Journals.

• Standard Size/Diameter, Tri Metal, 
• NARROW SERIES
• Extra Clearance Series - .0005 in. thinner wall bearing for .0010 in extra oil clearance.
• USAGE: Performance
• Size:  Stock
• Material: Tri-Metal - TM-77
• Set of 8

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.