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**dennislbrooks** · 12-30-2021, 08:14 AM

I did change the 250 I6 for a 350. The trans and transfer case had to move forward 1.5 inches. I had to get a long yoke for the rear driveshaft. The front driveshaft is ok. This moved some weight forward so I resolved it the same as I had the 67 when I put the bbc in.

The six had been rebuilt in its life and could still be a good engine but I think it needs a new or good cam with lifters. Those parts cost new over $300. If someone took out a good cam for a 250 I6, I would be interested.

12-30-2021, 08:14 AM	#31
dennislbrooks Senior Member Join Date: Feb 2004 Location: Williamsburg, Ohio Posts: 1,764	Re: 1959 GMC Fleet - 2wd to 4wd I did change the 250 I6 for a 350. The trans and transfer case had to move forward 1.5 inches. I had to get a long yoke for the rear driveshaft. The front driveshaft is ok. This moved some weight forward so I resolved it the same as I had the 67 when I put the bbc in. The six had been rebuilt in its life and could still be a good engine but I think it needs a new or good cam with lifters. Those parts cost new over $300. If someone took out a good cam for a 250 I6, I would be interested. Attached Images __________________ 1942 Chevy 1/2 ton Rod, 1959 GMC 1/2 ton Fleet Stepside, 1967 Chevy SWB K10, 1985 Corvette Coupe 4+3, 2015 Chevy Duramax reg cab 4WD W/T Last edited by dennislbrooks; 12-30-2021 at 08:20 AM. Reason: words