yeti
10-09-2006, 19:57
About the year 2000 I bought a GM replacement for my 82 GMC w/ 6.2l. the truck is since rusted out and waiting to be fixed. But in the mean time.....would this be a 6.5l with smaller heads or just a naturally asperated 6.5l. The casting no. on the block is 12555506. Any help would be appreciated.