Sealed Power 1255M Engine Camshaft Bearing Set

OE Camshaft Bearing Set for Big Block Chevrolet

Sealed Power 1255M is an OE replacement camshaft bearing set for 1965-1966 Chevrolet big block engines, including 396, 402, 427, and 454 applications. Built with babbitt material and grooved bearing design details, it supports classic engine rebuilds that need correct vintage fitment and dependable journal support.

• Babbitt bearing material for traditional engine rebuild applications
• Grooved design with groove in the rear cam journal and bearing
• Standard size only for OE replacement service
• Fits Chevrolet big block engines: 396, 402, 427, and 454
• Vintage Sealed Power component for 1965-66 only applications

Fitment Details

• Fits 1965-1966 Chevrolet Bel Air, groove in rear cam journal and bearing.
• Fits 1966 Chevrolet Caprice, groove in rear cam journal and bearing.
• Fits 1965-1966 Chevrolet Corvette, groove in rear cam journal and bearing.
• Fits 1965-1966 Chevrolet Impala, groove in rear cam journal and bearing.
• Fits 1965-1966 Chevrolet Malibu, groove in rear cam journal and bearing.
• Fits 1966 Pontiac Laurentian, groove in rear cam journal and bearing.
• Fits 1966 Pontiac Parisienne, groove in rear cam journal and bearing.

What This Part Helps Address

• Camshaft journal wear in a rebuilt Chevrolet big block engine
• Incorrect bearing sizing during an OE-style restoration
• Oil distribution concerns at the rear cam journal in grooved applications
• Fitment issues when restoring 1965-1966 Chevrolet Bel Air, Impala, or Corvette engines
• Replacement needs for vintage Pontiac Laurentian and Parisienne applications listed above

Installation Notes

Verify engine family, displacement, and standard-size bearing requirements before installation. This part is specified for 1965-66 only applications with a grooved rear cam journal and bearing, so confirm the engine block and camshaft oiling configuration during teardown and mock-up. Professional installation and proper bearing clearance checks are recommended for a successful rebuild.

Quality Assurance

Sealed Power Vintage components are made for older applications and are produced with modern manufacturing controls, including ISO and QS certified processes, to support consistent performance and longevity in classic engine rebuilds. This part cross-references 5C615S and 976CS for the same application.