Engine Blocks

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...

Chevrolet Performance LS3 Windage Tray  

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

Chevrolet Performance RTV Engine Sealant 2.65 oz 88864346 Room temperature vulcanizing (RTV) sealant. This high viscosity product cures when exposed to air. The cured material has superior adhesion and elongation properties and is very resistant to...

Chevrolet Performance RTV Engine Sealant 5.3 oz 12378521 Room temperature vulcanizing (RTV) sealant. This high viscosity product cures when exposed to air. The cured material has superior adhesion and elongation properties and is very resistant to...

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.

RHS LS 9.240" Standard Deck 4.120" Bore Aluminum Race Block 54903U Block Specifications Designed from heavy-duty A357-T6 aluminum material 3.895”-4.165” siamese cast bore walls w/ press-in spun cast iron liner Available in standard (9...

RHS LS 9.750" Tall Deck 4.120" Bore Aluminum Race Block 54901U Block Specifications Designed from heavy-duty A357-T6 aluminum material 4.125”-4.165” siamese cast bore walls w/ press-in spun cast iron liner Available in standard (9...

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 

ARP GM LS Main Cap Side Bolts 671-1002 Main Cap Side Bolts Only (Requires qty 2 per engine)

GM LS Oil Galley Plug (12573460) Like GM #12573460