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Old November 13th, 2020, 03:12 PM
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GMCNUT GMCNUT is offline
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Join Date: Jan 2013
Location: Arab Alabama
Truck: 60 1001 Wideside Custom BBW, 62 K1001 Wideside BBW and 1966 1001 Wideside BBW w/ Sport Trim option
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Default Re: 1961 305A vs 305D what is the difference?

Quote:
Originally Posted by LEWISMATKIN View Post
Many of the "A" engines were changed over to the "D" configuration for various reasons, some for drivability issues, some for power, some for fuel mileage, and others simply because the owners wanted a larger carb.
probably what happened to that 61 K1000 burb I wish I had back. No way to know now and didnt think to check the intake date code.
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My 60-66 GMC Projects:

1960 1001 Custom Cab short wideside BBW, 305A V6, factory PB, Hood Jet, Radio and Hydramatic.

1962 K1000 4x4 short wideside, BBW, 305D w/ SM420, PTO Winch

1966 1001 Custom Cab short wideside, w/ super rare Sport Trim option interior (bucket seats)
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