727 Build for Mid-10s

A high pressure valve body usually means a transbrake. You said you were going to use a manual shift, they are usually lower pressure.

The valvbody I'm getting is set at 155 psi. Is that considered low pressure? Low enough to not worry about a thinner rear clutch piston?


What size rear tires and rear axle ratio are you planning on?
That may have an influence on your trans build as far as ideal gear ratios.

Rear gears are 4.10s w/ a 30" radial tire. Any thoughts on how that would influence the list of necessary transmission parts?