ZL1 or L88 aluminum heads rebuilt
 

ZL1 or L88 427 aluminum heads casting number 3946074 dated 5-18-70 and 6-12-70 complete minus rockers. The heads had a valve job and have new manley valves. The heads are all stock with no porting or oversized valves and are in great condition. Heads were pressure tested when rebuilt and are ready to drop on $2200.