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Old 11-27-2018, 08:38 PM   #19
Robert1970C20rstbukt
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Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
Re: '84 454, oil in coolant????

Update time, been busy with family and work. I actually couldn't run the engine in the truck anymore as it was starting to mix water in the oil, it's been parked since the beginning of October. I don't want to take a chance on block sealer, don't think it would work anyway since the oil pressure is 60 psi vs coolant at 15 tops. I asked around locally and scored a complete 454 from a '78 Winnebago with about 48K miles for $500. I checked it out and fired it up while it was in the motor home and it ran like a top, no odd noises or smoke. I had a friend bring their winch truck over and we used a stinger pole I built to reach in there and hook up the engine. Once I got it home I took the pan off and everything looked real clean inside. I replaced the oil pump, timing set and all gaskets and seals. I transferred the intake from the original engine because the carb on my truck used the hot air choke and not the spring type. Once I got it buttoned up I gave it a coat of black paint. Dad and I got it dropped in Sunday, fired it up yesterday and it sounds even better with the dual glass packs.
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1984 Chevrolet C30 welding truck 454/SM465
1977 GMC C15 pickup 350/TH350
1970 Chevrolet C20 pickup 350/TH400
1970 Chevrolet K20 Suburban 454/TH350
1969 GMC 8500 478M V6/5 spd winch truck
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