A518 (46RH)
As above. 46rh only good choice
I’m going to check that out thanks!Silver Sport Transmissions has the 4 speed automatic based on the GM 700R4, also known as the 4L60E.
I haven’t installed one in a B- body. But it appears that most get away with a simple grind of a rib or two on the OD case.The 518 will require a redesign/modification of the top area of the torsion bar/transmission cross member due to the size of the extension housing.
Mike
It will handle a couple thousand horsepower though. You can't put much through a 518.There is a couple of pressure switch kits for the three-pin lockup model for around $100.00
G.V. costs way too much and you don't get a lockup.