Chevrolet & GMC Choke Vacuum Breaks
This guide is generic. You will need the carb number to get the correct thermostat
Whenever possible match up the product picture with the old part.
YEAR
MODEL
CYLS
TYPE
PRI PULL-OFF
SEC PULL-OFF
1980
250
6
2SE
1981
250 4.1L
6
2SE
1981
4.1L 250"
6
5.0L 305
1981
4.1L 250" (CALIF)
6
2SE
1983
250
6
2SE
1983
4.1L 250"
6
2SE
1982-83
173 2.8L S, T-10, 15
6
2SE
1982-83
5.7L 350M EXC CALIF
8
M4MC