• 4.3L CARB ALPHA/BRAVO - 0M615000 THRU 0W300012
• 4.3L CARB ALPHA/BRAVO - 0W300013 THRU 0W309999
• 4.3L CARB ALPHA/BRAVO - 0W310000 THRU 0W649999
• 4.3L CARB ALPHA/BRAVO - 0W650000 THRU 1A063239
• 4.3L CARB ALPHA/BRAVO - 1A063240 & Up
• 4.3L MPI ALPHA/BRAVO - 0M615000 THRU 0W309999
• 4.3L MPI ALPHA/BRAVO - 0W310000 THRU 0W649999
• 4.3L MPI ALPHA/BRAVO - 0W650000 THRU 0W658582
• 4.3L MPI ALPHA/BRAVO - 0W658583 THRU 0W658583
• 4.3L MPI ALPHA/BRAVO - 0W658584 THRU 1A030367
• 4.3L MPI ALPHA/BRAVO - 1A030368 THRU 1A030369
• 4.3L MPI ALPHA/BRAVO - 1A030370 THRU 1A063239
• 4.3L MPI ALPHA/BRAVO - 1A063240 & Up