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Can you explain more on the electronic and driveshaft issues that would make it prohibitive ?
You need the following:
Transmission. The 8HP70 is the most common and handle about 600 HP stock. Can be found starting at $350.00. The 8HP90 is the big boy, comes in 900HP Dodge Hell Cats. They start around $2,500.00. Slightly larger than the 8HP70.
Bell housing adapter kit. $1,200.00 to $1,600.00. Includes torque converter adapter.
Electronics. Stand alone transmission controller TurboLamik with harness about $1,600.00 OR CanTCU with harness about $2,000.00 OR engine EFI system with integrated transmission controller, MaxxRCU Race ECU with harness about $2,100.00. Separate transmission controller NOT needed with this EFI ECU, saves money.
Driveshaft. Driveshaft Shop 3-1/2 inch shaft with plunging CV joint on front, U-Joint on the rear, about $900.00, Carbon Fiber, about $1,400.00.
The 8HP70 can be built to handle 1,000HP. There are some very expensive kits on the market but can be put together by piece for much less cost. Frictions, steels, some billet drums, etc. Simple build, none of the many mods needed like the 4L80E does.
Last edited by Paul Bell; Apr 22, 2026 at 11:22 PM.
You'll want a two wheel drive transmission that has this output flange.
Why a CV joint not a U-joint at the transmission? It avoids needing an expensive slip joint in the driveshaft and at higher speeds and power levels, a U-joint on the transmission output shaft can cause problems.
Are there any running/driving FBody examples with a build thread on here?
I saw a guy on Instagram with a ls 8hp swapped 3rd gen camaro. I was very impressed with the ingenuity. He posted a video of it driving and shifting through the gears
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