Engine Block Accessories

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 Polished Valley Cover 54-257 Gen 3 Valley Cover without knock sensors.      

Dart Iron LS Next Main Stud Kit 66311010  

ARP Main Studs for GM Gen V LT1/LT4 234-5802 ARP has been the leading manufacturer of performance automotive fasteners since 1968. From it's beginning, ARP has grown to be exceptionally self-reliant and controls all aspects of the manufacturing process...

ARP Main Studs for WP Warhawk LS Aluminum Block 134-5802 ARP has been the leading manufacturer of performance automotive fasteners since 1968. From it's beginning, ARP has grown to be exceptionally self-reliant and controls all aspects of the...

Billet Main Caps for GM LSX, LS7 Blocks by Pro-Gram Engineering Requires line bore / hone for fitment, LS7/LSX also requires thrust to be finished on block. Made in USA! With the influx of lesser quality goods and materials to the US, Pro-Gram...

Chevrolet Performance LS Gen IV Valley Cover 12599296  

Chevrolet Performance Gen IV Valley Cover 12598832 Direct replacement LS2/LS3/LS7 engine valley cover. No provision for PCV, Includes O-Ring seals for DOD delete.

Mahle Clevite P-Series Rod Bearing CB663P Clevite P-Series bearings were one of the first performance bearings available. Clevite® TriMetal™ engine bearings have been the industry standard since the first patent on the cast, copper,...