Engine Block Accessories

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

Calico Coated Dart LS Next Main Bearing Set MS2321HX - +.001" Oil Clearence 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...

LSXceleration Gen III Trussed Valley Cover - Black 54-262 Trussed valley cover for Gen 3 LS Engines.  Features: Does not have Knock sensor provisions  Trussed Design Includes Fasteners Does Not include gasket Back Finish

LSXceleration Gen IV Trussed Valley Cover - Black 54-265 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 Fasteners Does Not...

Mahle Clevite P-Series LS Rod Bearing Set CB663P20(8) - .020" Undersize Clevite P-Series bearings were one of the first performance bearings available. Clevite® TriMetal™ engine bearings have been the industry standard since the...

Mahle Clevite P-Series LS Rod Bearing Set CB663P10(8) - .010" Undersize Clevite P-Series bearings were one of the first performance bearings available. Clevite® TriMetal™ engine bearings have been the industry standard since the...

GM Gen V LT Engine Oil Galley Plug 54-61074 (12661074) Oil Galley Barbell Plug for GM Gen V Engines

LSXceleration Gen IV/V DOD Oil Block Off Plugs 54224-8 Set of 8 Gen IV/V DOD Oil Block off plugs. Made in the USA.

Chevrolet Performance LSX Rear Cover 19369274 Fits GM LSX Block and Concept Performance LSR Block. Does NOT included bolts or seal/gasket. 

Chevrolet Performance LS Main Cap Fastener Kit Fastener Kit Includes: 10 x #12560273 Outer Main Cap Stud 10 x #12560272 Inner Main Cap Bolt 10 x #12556127 Side Main Cap Bolt