« Reply #3 on: October 31, 2015, 09:41:38 AM »
The two grooves on the input shaft make it a M20.
Paul
Just referring to how the seller describes it in the listing Paul - it's been rebuilt so I took it they used close ratio gearsets. Maybe it's still got wide ratio gears.
Logged
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway