Rear Covers

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

Chevrolet Performance Gen V L83 L86 LT1 LT4 Rear Cover 12705663 Includes bolts and rear main seal.  

GM LS Rear Cover Alignment Tool LSRC1 The timing cover and rear cover on GM (General Motors) LS series engines don't have any dowel pins to ensure correct alignment to the centerline of the crankshaft & this often leads to annoying leaks at the front...

LSX Block Rear Cover O-Ring Seal 19166181

LSX Block Rear Cam Thrust Plate O-Ring Seal 19166180

Chevrolet Performance LSX Rear Cover 19369274 Fits GM LSX Block and Concept Performance LSR Block. Does NOT included bolts or seal/gasket. 

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