High HP guys running a TH400 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RICKSRAT · 12-25-2018, 05:26 AM

I just had TransKing go through my 400 and went with some upgraded parts. Went with Coan 300M Main shaft, 300m Input shaft w/oem drum, Billet forward clutch hub and a 2.22/1.40 5 pinion W/straight cut gears. The cost difference to a 2.10 was not worth it to me. I will be changing rear gear out soon from a 4.30 so will get SLR closer when I change rear gear. I went from a 31x14 Goodyear to a 315/60/15 drag radial. So its going to get interesting. Trans has a JW bell and just had it recertified as well. Was told it was good for 1200hp with upgrades done.

12-25-2018, 05:26 AM	#4
RICKSRAT Registered User Join Date: Apr 2000 Location: LAKE JACKSON TEXAS Posts: 343	Re: High HP guys running a TH400 I just had TransKing go through my 400 and went with some upgraded parts. Went with Coan 300M Main shaft, 300m Input shaft w/oem drum, Billet forward clutch hub and a 2.22/1.40 5 pinion W/straight cut gears. The cost difference to a 2.10 was not worth it to me. I will be changing rear gear out soon from a 4.30 so will get SLR closer when I change rear gear. I went from a 31x14 Goodyear to a 315/60/15 drag radial. So its going to get interesting. Trans has a JW bell and just had it recertified as well. Was told it was good for 1200hp with upgrades done. __________________ '72 SWB 3,600# Indigo Blue , Sunset Racing Pump Gas 582" 1,002hp / 833tq ,Transking 400 W/ Transbrake, Moser Dana 60 w/4.30 Old Motor: 60'. 1.43 1/8 6.58@104.64 1/4. 10.42@127.10 Nitrous: 60'. 1.28 1/8. 6.15@ 112.02 1/4. 9.75@ 136.32

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