Quote:
Originally Posted by justcuz
What is the torque rating of both engines?
Those 3/4 ton Suburbans do make nice tow vehicles.
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Happy father's day!
the 454 and 6.5L are closely rated for torque. the 454 is rated at 410 and the 6.5L is 400ish... gears make a difference for both engines. the 4.10s let the 6.5l tow, but at the higher RPMS the tiny turbo chokes. I put in 3.73s because I am after mileage, but they also keep the RPMS low and I think tow just as well if you know what you're doing. If I wasn't planning on taking long trips in the suburban I would have left the 454. the white suburban above is my brothers. it's got the 454 and it's gonna get the old 454 out of my burb once it's been rebuilt. his 454 gets the same mileage unloaded or towing. those things are awesome beasts. the only thing his burb lacks is clean leather. it is fully optioned, but the front seats are toast. Once I have the bugs worked out of the Suburple I've got some tricks to throw at it and see what kind of mileage I can get and if I can keep EGTS manageable... that was my biggest challenge towing over the I70 corridor.