Got Torque? GM 502/TH400/GV O/D complete drivetrain

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87octane

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Jun 24, 2022
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Location
Corvallis OR
Got Torque? GM 502/TH400/GV O/D complete drivetrain

If your rig is packing a 454, you want this drivetrain.

New, less than 2000 miles, GM crate HT502 cid 400+HP/540 Torque
500 lb/ft torque from 2500-4500 rpm. Try that with your 454.
8.75:1 compression means regular gas at any altitude
iron gen IV block and iron gen IV oval port heads accepts all stock manifolds. Currently
fully dressed and driving with low rise stock dual plane and Quadrajet 4 barrel. (Throw on a
Performer RPM and a ZZ cam in it and scare the old lady even more...)
Full complement of 1984 accessories. Runs perfect.
New MSD HEI high output ignition system, the good stuff. No think, nothing to do here.
Electric fuel pump (no mechanical)
ProForm high torque gear reduction starter, stock couldn't hack it.
Doug Thorley Tri-Y headers, silver ceramic coated, a work of art that makes the above
numbers severely under-rated. (and full dual exhaust with Walker Super Turbo mufflers for
31 ft chassis.) Wonderfully quiet, but they'll know you're packing heat when you stand on
it to 5000 rpms.

Fresh Turbo 400, 1500 stall converter, shifts perfectly.

Gear Vendors Automatic .78 Overdrive. That's right, automatic overdrive 4th gear at 50
mph. With all this torque you don't need to spin the engine any more. Or have fun fooling
around with the manual switch for gear splitting to get 6 speeds: first, first O/D, second, second O/D, third, final OD.

You'd be hard pressed to put this combo together for $15,000 (June 2022 pricing).
I'll take half that OBO.
Located in Corvallis Oregon.

Ric Smith 458 262 0154 [email protected]
 
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