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Re: Turbo 6.2 or 292 swap
The 6.2s I've run, three and all with 35" tires, had grunt right off the line. I think yours isn't running right. I'd look into fixing that, first. I think the 6.2 will last longer w/o a turbo. From what I have seen, 6.2s outlive 6.5TDs. That has been my experience. I love the 292s and had no idea they got any better MPG than a small block. But I did used to get that kind of mileage from a 307, which I had in a 4spd '71 K/20 set up like your '87. I ran 37/14.50 rubber on that one and it was always loaded up, bed, bins, and rack.
It's fun to swap things around, so the 292 would be cool. I'd put a small spread bore 4bbl on it. My experience has been better mileage from a spread bore 4bbl than a 2bbl. Primaries are way less CFM that the factory 2bbl
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"
GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
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Tim
"Don't call me a redneck. I'm a rough cut country gentleman"
R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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