Hammered put a TKO 600 in his. From his HPP article it says TKO 600 with Hurst shifter mated to a McLeod Street Twin clutch and flywheel retaining the factory bellhousing. He had a custom, steel driveshaft to the original 8.2in axle with Detroit Locker posi and 3:55:1 gears. His dyno test was 529hp@5800rpm. You might want to PM him if you have more questions.
"An ignorant man thinks he knows everything, a wise man knows he doesn't."
