The 1947 - Present Chevrolet & GMC Truck Message Board Network

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- - TX 1957 GMC 270 6 cyl and 4 speed (https://67-72chevytrucks.com/vboard/showthread.php?t=851724)

STP67-72

03-30-2024 11:33 PM

1957 GMC 270 6 cyl and 4 speed

I have a complete motor and trans out of 57 GMC 1/2 ton It was running and driving. Pulled for a v8 and automatic transmission install. Complete from original air breather down. I plan on having it at LoneStar Roundup in Austin Tx. I can get some pictures if needed. $600.00 obo.

Divine 59

05-12-2024 10:56 PM

Re: 1957 GMC 270 6 cyl and 4 speed

Hello STP67-72, do you still have the GMC 270? If the answer is "yes" can you give more information about the transmission? It is described as a 4 speed. Is it a SM420 4 speed manual or a Hydramatic 4 speed auto?

Hope to come to terms on this engine.

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