Feb 6, 2025 #1 G garyinmich New Member Joined Dec 26, 2024 Messages 3 Reaction score 0 Location Michigan Rating - 0% 0 0 0 Contact seller I have a Thermo quad 6322S core that I would like to trade for a 6321S core or base only.
Feb 9, 2025 #2 V volaredon Well-Known Member Joined Feb 28, 2010 Messages 4,720 Reaction score 2,800 Location IL Rating - 100% 4 0 0 What's the difference between them besides that stamped number?
Feb 9, 2025 #3 G garyinmich New Member Joined Dec 26, 2024 Messages 3 Reaction score 0 Location Michigan Rating - 0% 0 0 0 Secondaries are different. Carb numbers are for model year 1973. 6321 is for a 400HP AT, 6322 is 440HP AT.
Secondaries are different. Carb numbers are for model year 1973. 6321 is for a 400HP AT, 6322 is 440HP AT.
