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Clevite Pontiac 421 428 455 V8 1963-76 Main Bearing Set
Clevite
Clevite

Clevite Pontiac 421 428 455 V8 1963-76 Main Bearing Set

$203.37

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Clevite main bearing set for Pontiac 421, 428, 455 V8 engines (1963-76). Features a 0.010 inch undersize for crankshaft regrinding.

Key Features

  • Fits 1963-1976 Pontiac 421, 428, and 455 V8 engines.
  • Main bearing set is 0.010 inch undersize for use with a reground crankshaft.
  • Multi-layer bearing material with a steel backing for durability.
  • Designed to handle the pressures and temperatures of V8 operation.
  • Helps maintain proper oil clearance and reduce crankshaft friction.
  • Fits a wide range of Pontiac vehicles including Bonneville, Catalina, and Grand Prix.
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Product Details

These Clevite main bearings are built to a 0.010 inch undersize, meaning they're designed to work with a crankshaft that has been reground by 0.010 inches. This is a common practice when rebuilding an engine to bring worn bearing surfaces back into spec. This set is specifically made for Pontiac V8 engines like the 421, 428, and 455, covering a wide range of years from 1963 to 1976.

When you're rebuilding the bottom end of your Pontiac V8, getting the main bearings right is crucial for engine longevity. Clevite uses a multi-layer bearing material with a steel backing for strength and a specific overlay designed to handle the pressures and temperatures found in these classic engines. This well-built set ensures a solid foundation for your crankshaft, helping to maintain proper oil clearance and reduce friction.

This set fits a variety of Pontiac models from the mid-60s through the mid-70s, including popular choices like the Bonneville, Catalina, and Grand Prix. If you're in the middle of a restoration or a performance build on one of these engines, these bearings are a solid option to consider for a reliable rebuild.

Specifications

Brand
Clevite
Manufacturer Part #
MS667P10
UPC
027067540157

Frequently Asked Questions

Clevite Pontiac 421 428 455 V8 1963-76 Main Bearing Set

$203.37