Jegs XHD converter part number 555-60430
GM TH350/400 or Powerglide with Turbo Spline Input Shaft
Dual 6.25" anti-ballooning plates for use with nitrous, blower, and transbrake applications
Rated at 800 horsepower
Stall Speed: 3200-3500 RPM
NEW IN THE BOX, NEVER USED..
I paid $400
300 shipped