4.3L (262 CU IN) V6 GM 4.3L CARB ALPHA/BRAVO

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