Out of stock
SKU: KEBMB5511HP
UPC: 611500580369
MPN: MB5511HP
The Main Bearing Set for Pontiac V8 engines (326/350/389/400) is designed for automotive enthusiasts and professional mechanics who are rebuilding or upgrading classic Pontiac powerplants. This set is essential for restoring vehicles like the GTO, Lemans, or Bonneville, ensuring reliable performance in both stock and modified applications.
Engineered with precision, this bearing set features a multilayer construction that typically includes a steel backing with a babbitt or copper-lead overlay. This design reduces friction and maintains structural integrity under peak combustion pressures, addressing the critical interface between the crankshaft and block. Proper installation clearance is crucial, as oversized or undersized bearings can compromise oil pressure and accelerate wear.
This bearing set is ideal for anyone performing a full engine rebuild or transitioning to a stroker crank. It accommodates the specific journal sizes and clearances required by Pontiac's engineering, ensuring optimal oil film formation and load distribution. Whether for stock rebuilds or performance builds, quality main bearings are foundational for reliable engine operation.
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