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Old 10-25-2010, 11:30 PM   #10
cableguy0
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Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
Re: 70 Shortbox Chevy 2wd considering a GM 3800?

Even a junkyard 350 will net you better performance and be a much easier install. That v6 just isnt going to make the torque needed. The engine mounts are going to be a complete and total pain in the @ss to get right. Your going to need the harness and computer reworked. That engine is designed to work with a computer controlled electronic transmission. Theres not a chance of getting anywhere close to 20 mpg because you will be working the engine fairly hard most of the time. Maybe downhill in neutral with a tail wind.
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