Engine Blocks

Holley GM LS1/LS6 Trussed Valley Cover with Oil Fill - Black Billet 241-369 Holley's LS valley covers with oil fill provisions are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and...

Holley GM LS2/LS3/LS7/LSX Trussed Valley Cover - Natural Billet 241-263 Holley's new trussed LS valley covers are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern...

Holley GM LS1/LS6 Trussed Valley Cover - Black 241-262 Holley's new trussed LS valley covers are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern trussed design, these LS...

Holley GM LS2/LS3/LS7/LSX Trussed Valley Cover - Black 241-265   Holley's new trussed LS valley covers are the latest addition to our expansive lineup of LS engine dress up products. Machined from billet aluminum and featuring a modern trussed...

LSXceleration Gen IV Trussed Valley Cover - Polished 54-264 Trussed valley cover for Gen IV LS Engines. Must use DOD Oil Block Off Plugs # 54224-8 if deleting DOD/AFM. Features: NON AFM/DOD Valley Cover  Trussed Design Includes...

LSXceleration Gen III Trussed Valley Cover - Polished 54-261 Trussed valley cover for Gen 3 LS Engines.  Features: Does not have Knock sensor provisions  Trussed Design Includes Fasteners Does Not include gasket Polished Finish

Calico Coated Dart LS Next Main Bearing Set MS2321H Calico Coatings produces high-performance bearings coated with their CT-1 Dry Film Lubricant coating. CT-1 is specifically engineered to withstand the extreme conditions of today's performance engines...

Mahle Clevite P-Series LS Rod Bearing Set CB663P1(8) - .001" Undersize Clevite P-Series bearings were one of the first performance bearings available. Clevite® TriMetal™ engine bearings have been the industry standard since the first...

LSXceleration LS2/LS3/LS7/LSX Finned Polished Valley Cover 54-267 Gen 4 Valley Cover without DOD/AFM provisions. This valley cover does not have o-rings to seal the DOD oil galleys like some of the OEM valley covers. You must use our DOD oil...

LSXceleration LS2/LS3/LS7/LSX Finned Black Valley Cover 54-268 Gen 4 Valley Cover without DOD/AFM provisions. This valley cover does not have o-rings to seal the DOD oil galleys like some of the OEM valley covers. You must use our DOD oil...

Chevrolet Performance Engine Block Coolant Plug 11611351 27mm x 1.0 Thread

Chevrolet Performance Engine Block Coolant Plug 12561663 28mm x 1.25 Thread, 0.500 UHL