GM LS Rear Main Cover 12639250

Chevrolet Performance rear main engine covers for LS-series engines are direct replacements and bolt safely to LS blocks without modification. Ideal for replacing when rebuilding or refreshing your engine. GM offers a quality, reliable engine covers and seals to keep your LS running without worry. WILL NOT WORK WITH LSX BLOCK

Fits the following engines:

4.8L & 5.3L - LR4 L20 LY2 LM4 LM7 L59 LY5 L33 LC9 LH6 LH8 LH9 LMF LMG

5.7L - LS1 LS6

6.0L - LQ4 LQ9 LS2 L76 L77 L96 LFA LY6 

6.2L - L92 L99 L9H LS3 

LS1 LS2 LS3 LS6 LM7 L33 LFA LSA LH6 LQ4 LQ9 L76 L77 L92 L99 L96 LC9 LY6 LMG LH8