06-22-2019, 12:37 PM | #1 |
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350 to 292
How hard would it be to swap from a factory 350 to a 292 straight six ???
I assume I would need engine mounts, exhaust, and fuel line modifications. I'm guessing the six would bolt right up to an SM465. Only reason I ask is that the 350 in the 1976 C-20 needs rebuilt or replaced, and I've always wanted a 292. It seems like there are a lot of folks "upgrading" old pickups from sixes to whatever modern V-8 and there might be a decent running engine just sitting around along with some of the parts, etc.
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
06-22-2019, 03:12 PM | #2 |
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Re: 350 to 292
Z bar/bell crank amd mounting points for clutch linkage may be different, not 100% sure though
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06-23-2019, 07:35 AM | #3 |
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Re: 350 to 292
What Jocko mention. I think mounts are the same, but just moved on cross-member. Hard part, least around here, is finding a 292, especially a running one with the accessory brackets.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
06-23-2019, 10:31 AM | #4 | |
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Re: 350 to 292
Quote:
Anyway, the only "accessory brackets" I would need are for power steering and of course the alternator. The old pickup is just a 2wd but still I hate to see it just sitting
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
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06-23-2019, 02:28 PM | #5 |
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Re: 350 to 292
Nothing wrong with a 6 in a PU. Lots of PUs did and still do lots of useful service with sixes as the power plant. It doesn't need a 500hp motor to do good work.
Might need a different drive shaft/front yoke if the replacement transmission is a different length or spline count. |
06-23-2019, 02:57 PM | #6 | |
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Re: 350 to 292
Quote:
Not planning to replace the transmission at all. I was just using the example that everyone seems to hate the SM465 and are swapping them out, and wondered if the same thing was happening with the 292 six engine?
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
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06-23-2019, 03:05 PM | #7 |
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Re: 350 to 292
Unless you want a 6 or keep a truck original, it is WAY cheaper and easier to do a V8. I think that is main reason folks do the V8. I am about to get my 250 back from the builder and beginning to wonder if I should have done the 350 thing now.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
06-23-2019, 07:53 PM | #8 | |
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Re: 350 to 292
Quote:
I suppose the cheapest/easiest thing would be to find a used running 350 that somebody is swapping out for something fancier.
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
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