They are Awsomely strong brute force truck's, i know i have hundred's of load's that weight 22,000LB's . . .

Just drop 22K-lbs on the ball hitch and roll on down the road 60mph on level ground topping the steepest grades at 53mph . . .

Never seen this truck lose more then 7mph climbing hill's mostly only 1-3mph drop in speed.

But my truck is equipped with a Government rebuilt 379 V-6, flat top piston's netting 8.6:1 compression, magnum intake, heads ect.

Dynoed:
175hp@3,400rpm & 388tq@1,800rpm at the fly wheel 12 or 13 years ago . . .

Mike



1962 GMC K3000, GMC-379 V6.