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Outer Main Bearing Bolt

From GM Performance - 1/2-13 x 2.60 inch, for cast iron big block V8s with four bolt main bearing caps. 10 required. (Mark IV).
PN Details Special
Shipping		 Engine Model(s) Years List Price Your Price Add to
37005 Chevy Big Block V8 - All Camaro Chevelle ChevyII ElCamino Impala Nova All 5.45 4.95/Each
From GM Performance - 1/2-13 x 2.78 inch, for Gen V & Gen VI big block.
PN Details Special
Shipping		 Engine Model(s) Years List Price Your Price Add to
37006 Chevy Big Block V8 - All Camaro Chevelle ChevyII ElCamino Impala Nova All 5.45 4.95/Each