November 30th, 2019, 05:51 PM
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Join Date: Jan 2013
Location: Medford, Oregon
Truck: 1962, 1967
Posts: 905
Thanks: 9
Thanked 19 Times in 8 Posts
Rep Power: 358
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Re: 351C questions
Quote:
Originally Posted by Palimino
Just picked up this engine last week, came out of a '66 5000 chassis, mileage unknown, first compression check was kinda low in the 40-60 lb. range, shot some Mystery oil down the holes and got better numbers, 90-95 (1-3-5-6) and 89-70 ( 2-4), pulled that head and it looks like head gasket could be the problem, not much if any ridge at top of the 3 bores, no gouges/scoring either. Valves look to be 1 7/8" EX and 2 1/8" IN, the manifolds are the "I" beam style. Are these the "small" valve heads I have heard of? Thnx
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The 351C is a non-Magnum engine, so -- yes -- it has the "small" valve heads just like the 305s have. The 351E has the Magnum heads. My one ton Suburban has the 351C in it.
__________________
Ed Snyder
Medford, Oregon
1962 1000 Pickup 401M & Muncie 318 with overdrive
1962 K1000 Suburban 401M & SM420
1967 CM1500 pickup 351E & NP435
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