Big block/3 on the tree?

RustyRatRod said
the A230 is the HD three speed and has a synchronized 1st gear.

Yep

YY1 said
Road Runners and Super Bees (383 until the 340 in 71) standard equipment was a 3 speed manual.

My 70 Duster 340 was a 3 speed. My brother ordered his Duster 340 with the optional 4 speed

33IMP said
The 3sp also avoided the insurance musclecar surcharge.

My dad co-signed for me and the insurance man said "Good thing it's a 3 speed or the insurance would be higher."