Just trying to get orientated with this site and all the help that seems to abound here.
I have a 90' Chevy 2500 with a HD turbo 400 tranny. This vehicle has a 350 with a throttle body.
This truck also has over 300,000 miles on it. Runs great...rear main leaks...gets 11 mpg on avg.
What I need to know is what engine to replace it with, what computer, and I would really like to
keep the 400 tranny. I do a little pulling of motorcycle trailers, and sometimes a 32' travel trailer.
I work all over the place as you have probably guessed, and am looking for gas savings, but still would like to have the pulling power, and power when just messing around. My son, who is a Camaro fanatic, has suggested that I locate a motor and computer from a wrecked late model 2500 HD truck and install that instead of a 345 hp vortec crate motor that I can pick up cheap.........help an old fart make a decision
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id do the 5.3 also , great power and mileage, your not going to get the best milage with that turbo 400, get an overdrive tranny to take full advantage of these newer fuel injected motors. also get a good tune and air intake and exhaust mods will get you 1-2 better mpg.
07 SILVERADO CLASSIC 2500 HD 4x4 CREW CAB LT3 DURAMAX LBZ/ALLISON 6 SPEED 5'' MBRP Turbo back exhaust 6'' TIP /NO CAT- NO MUFF/ AFE Intake/ EDGE HOT JUICE /MERCHANT AUTO STG III Built Allison/P I ConverterTTS Twin Lift Pumps. Tierod sleeves/Cognito braces.17x9 Moto metals_______ Old Truck ,04 Z-71/Turbocharged,/cam/stall/Zippy Built TRANS/Nelson Tuned------
