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Gypsyman · 02-07-2016, 02:31 PM

Rather than start a new thread I'll kick this one back to the top. Engine is believed to be a 426 c.i. I-6 in a '47-'49 800 series truck.

S/N AC4266526

Any idea what would the AC prefix stand for?

02-07-2016, 02:31 PM	#9
Gypsyman Registered User Join Date: Jan 2016 Location: Newman Lake WA Posts: 39	Re: GMC engine identification Rather than start a new thread I'll kick this one back to the top. Engine is believed to be a 426 c.i. I-6 in a '47-'49 800 series truck. S/N AC4266526 Any idea what would the AC prefix stand for?