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- - M1009 cucv (https://67-72chevytrucks.com/vboard/showthread.php?t=582397)

My friend got a ex military trailer a few months ago from a guy in the desert who sells military surplus, and he had a few of the M1008/9's around. Ever since then I have been wanting one.

I know stock the 6.2 can get up to 20 mpg cruising with 4.56 gears. How well do you think it can it do if it were 2wd, a 3.42 rear end, and backed by a 4L80? Maybe a banks kit to bring up the power for DD. Some people claim over 25 which would be amazing to me or did they tune the engine to the utmost?

Lets be honest I don't go wheeling, and I just need a decent ride height to go fishing. The M1009 will be lowered for easier access for me. Or about 2 inches lower then my C20.

Hopefully I am on the verge of a better job again, and would like to get one when things clear up around my house. Namely my projects that I have to restart.

Just to verify... M1009 is the Blazer and it will have 3.08 gears F/R. The M1008, M1028, and Ambulance/Maintenance trucks on the K30 chassis have the 4.56 gears F/R.

The M1009 with it's 3.08s should put down some pretty nice economy in stock form. Yes, a turbo kit wakes them up nicely as well.

My 87 R10 truck 6.2 700R4 3.08 gets 23mpg if driven nicely. Probably gets 26mpg at 55mph. Don't waste a 4L80E on a 6.2, to get an idea of the power think of them as a bad smelling 305. 700R4/4L60E is plenty stout - mine has 215,000 miles on it. Turbo is fun but cuts mileage and stresses a weak block.

Those upgrades will likely more than double your initial purchase price and won't necessarily increase mpg. If you buy one, just clean it up and enjoy it. I drive mine most every weekend and only fill it up a couple of times a year.

Quote:

Originally Posted by BRUISER (Post 6098019)

Agree. I have three M1009's. People will say that the 6.2's are slow, but for 90% of what I do I like the motor just as well, if not better than the gas versions in my other trucks/blazers. The best upgrade in my opinion for these if any highway driving is in your future is to upgrade to 33 x 10.50 BFG AT's. They fit without a lift and keep the RPM's within the motor's happy place at 65-70MPH. These motors sip fuel, and with a properly operating electrical system start much better than gassers.

Also have a '93 military one ton van with the 6.2 and 4L80. The van has much lower axle ratio than the M1009's 3.08's. I would say they are both in the same RPM range at 65MPH (van's overdrive vs. M1009's 3.08's and 33" tires).

Quote:

Originally Posted by Willowrun (Post 6098134)

Agree. I have three M1009's. People will say that the 6.2's are slow, but for 90% of what I do I like the motor just as well, if not better than the gas versions in my other trucks/blazers. The best upgrade in my opinion for these in my opinion if any highway driving is in your future is to upgrade to 33 x 10.50 BFG AT's. They fit without a lift and keep the RPM's within the motor's happy place at 65-70MPH. These motors sip fuel, and with a properly operating electrical system start much better than gassers.

Also have a '93 military one ton van with the 6.2 and 4L80. The van has much lower axle ratio than the M1009's 3.08's. I would say they are both in the same RPM range at 65MPH (van's overdrive vs. M1009's 3.08's and 33" tires).

That's funny, I have the 33" overdrive planned for mine.;)