89GMCJOHN
I'm Awesome
I bought this a year ago....as you can see from the pics the motor was toast . Its an 89 GMC 2 wheel drive . Red - maroon interior - really good shape . The previous owner put a Chevrolet grill on it . I took the 350 motor out only to find it was trashed internally - zero oil changes apparently. 1/2 inch of "coke" - baked oil in the galley smoking like crazy etc...The transmission appears to be out of a 93 (instead of 89) 700r that had 50k miles written on the side of it in grease pencil ...internally the transmission was clean as a whistle . I bought a 350 roller .060 over shortblock (360 cid) , Air gap intake , 600 cfm summit brand carb , and a Chevrolet ramjet camshaft 246 256 459 470 lift 109 lc as I am running 1.6 rockers for a little more lift . With the rebuilt "305" swirlport heads (on purpose ) and proper gasket I am running 10:1 . I built it to be a cruiser with decent gas mileage but a good amount of torque for what it is if I decide to pull a boat with it . So basically a torque build . I am even running the original detailed exhaust manifolds. I am switching to carb and a mechanical fuel pump as I didnt want to deal with computers , electric fuel pumps etc. and run my 89 Camaro rod this exact way as well . I detailed and cleaned the transmission , put a Corvette servo in the trans , new front and rear trans seals and a recalibrated governor assembly . It has a mechanical HEI ignition 60kv coil , MSD wires and GM plugs . Braided hoses, 3 inch open element air filter , factory detailed mechanical fan and shroud , new Gm valve covers and aftermarket intake are painted Chevrolet orange to give it an old school small block look . Will post more pics once all installed in a few weeks ... Desktop dyno says 270 hp 393 Torque J
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