Engine Block Accessories

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.

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

Chevrolet Performance Gen III/IV LS Rear Cover 12639250 Will not fit GM LSX or LSR blocks. 

Chevrolet Performance Cam Gear Bolt/Outer Main Cap Bolt 12556127 Use with 3-bolt, non-VVT camshafts and main cap outer bolt

LSXceleration LS1/LS6 Finned Black Valley Cover 54-258 Gen 3 Valley Cover without knock sensors.

LSXceleration LS1/LS6 Finned Polished Valley Cover 54-257 Gen 3 Valley Cover without knock sensors.      

Dart Iron LS Next Main Stud Kit 66311010