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Re: Eaton HO72/HO52 vs. 14 Bolt FF
Quote:
Originally Posted by chewiebarker
Sorry for the ignorance, and for reviving an old thread, but if people use the heavy duty rear ends like Eaton HO52 with 4.56 gears for hot rods or drag racers, and they use transmissions like TH350s, why the heck is my 71 K20 Suburban so slow? Is it just that the 350 engine can't spin the gears fast enough? Is it just the weight? If I put a 500hp engine in it, will it then 'go fast' with little other modification? (Not that I would. I am just trying to learn how it all works together.) Thanks for any insight! - Marc
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I have a 70 K20 suburban with an ho52, 4.10 gears and 35 inch coopers. I put in a ZZ4 350 (approximately 340HP at the crank) and have the th350 trans (4l80 coming this summer!) My truck scoots around pretty dang good for its size and weight. In fact I can beat up lifted ford's with the 7.3 (I know, I know the 7.3 is a bit of a dog) but still, I spank their butts!
I don't how this helps if at all... maybe just a grounds of comparison?
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1970 K20 suburban.
ZZ4 350 - 4l80e - 203 / 205 doubler.
Long travel Deavers with king shocks and bumps.
Detroit in back, Eaton E-locker up front with crossover & hysteer.
Plus 5 kids a wife and a dog!
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