Engine Block Accessories

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...

Billet Main Caps for GM LS Blocks (Will not fit LS7/LSX Blocks) Made in USA! With the influx of lesser quality goods and materials to the US, Pro-Gram Engineering solely uses materials certified as produced in the US. This helps guarantee the...

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,...

Mahle Clevite P-Series LS Rod Bearing Set CB663P(8) 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...

ARP Dart Iron LS Next Main Studs 134-5901 Works with DART Iron LS Next Block. (Use 234-5608 for Stock LS and LSX Blocks and use 134-5802 for Warhawk LS Aluminum Block.) ARP Main Studs are manufactured from 8740 chrome moly steel and heat treated...

ARP GM LS Main Studs 234-5608 Works with stock blocks, GMPP LSX blocks and most aftermarket blocks. (Use 134-5901 for DART Iron LS Next and use 134-5802 for Warhawk LS Aluminum Block.) ARP Main Studs are manufactured from 8740 chrome moly steel and...