Big Block

June 2008 -- Mahle Clevite Inc. is proud to announce new High Performance H-Series Rod and Main Bearings for Big Block Oldsmobile engines. These new rod bearings are narrowed on one side for increased crank fillet clearance and don't contain any dowel holes. The main bearings for positions 2, 3, 4, and 5 are full annular grooved, bearings for position 1 have a grooved upper half and plain lower half.

400 CID (6.6L), Oldsmobile V8 cyl, 3.875 in/98.4mm Bore, 1968-1969
400 CID (6.6L), Oldsmobile V8 cyl, 4.000 in/101.6mm Bore, 1965-1967
425 CID (7.0L), Oldsmobile V8 cyl, 4.125 in/104.8mm Bore, 1965-1967
455 CID (7.5L), Oldsmobile V8 cyl, 4.125 in/104.8mm Bore, 1968-1976

Part Numbers
CB-542HN STD, X, -1, -10, -20
MS-804H STD, X, -1, -10, -20

Pricing and Specifications

Anniversary 427 Big Block serial #001 to be auctioned on January 18 - Collectible engines to be offered to public early in 2008

2008-01-11, SCOTTSDALE, ARIZ – The first produced, all-aluminum Anniversary 427 Big Block crate engine – based on the legendary ZL-1 – will be auctioned during the Barrett-Jackson auction on Friday, January 18 in Scottsdale, Arizona. Only 427 of the special engines will be built.

The evolution of aluminum rocker technology – Ultra-Gold™ Rockers provide a new level of strength, quality and value

November 2007 -- COMP Cams® has been a major proponent of steel rockers arms for many years, however with recent developments in the design and manufacturing of aluminum rocker arms, it is now possible for us to offer a premium aluminum rocker alternative. COMP Cams® proudly introduces the new “Gold Standard” in stud-mount, aluminum roller rocker arms – the Ultra- Gold™.