Engine Block Accessories

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...

Mahle Clevite H-Series Main Bearings For Dart LS Next Block Clevite H-Series bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines. H-Series bearings have a...

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 LS6 Valley Cover 12577927 This LS6 Valley Cover eliminates the two rear valve cover PCV hose connections as well as the PCV hose and PCV valve. Improves crankcase ventilation and decreases the quantity of oil and contaminants that...

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

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,...

Chevrolet Performance LS3 Windage Tray  

Calico Coated Dart LS Next Main Bearing Set MS2321H 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 today's performance engines...

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 LS1 Windage Tray 12558253 Windage is the turbulent flow of air within the crankcase caused by rotation of the crankshaft. As rpm increases, so does windage. Chevrolet Performance windage trays reduce aeration of the oil from...

LSXceleration GM LS Engine Plug Kit 54251 *Does not include oil diverter barbell

Mahle Clevite P-Series LS Rod Bearing Set CB663P1(8) - .001" Undersize Clevite P-Series bearings were one of the first performance bearings available. Clevite® TriMetal™ engine bearings have been the industry standard since the first...