TCI Powerglide Transmissions 73250431

This Powerglide is matched to Chevy V8 small block Gen I engines from 1962 to 1972 and big block Mark IV engines from 1966 to 1972, running the Chevy bellhousing pattern in a rear-wheel-drive layout, with a full manual valve body, a built-in trans-brake, and an aluminum case carrying an SFI 4.1 and SFI 30.1 rated safety liner for drag-racing duty.

Confirm this before ordering

This Powerglide is catalogued as new, so confirm the exact build condition with us before ordering if that distinction matters for your application.

What's inside

A deep aluminum pan adds fluid capacity for better cooling under repeated runs, and the case includes a built-in transmission and flexplate shield for extra protection at the track. A steel clutch hub and a Vasco input shaft work with a 1.80 first-gear ratio for quick, positive engagement off the line, and the Pro Tree trans-brake is built for consistent, repeatable launches rather than daily street shifting.

Fit and use

Because it's matched to the Chevy small block Gen I and big block Mark IV families from those specific years, confirm your engine falls in that range before ordering. It suits drag racing and other repeated hard-launch use more than light street cruising.

Will this bolt to a later small block? It's matched to the 1962-1972 Gen I and 1966-1972 Mark IV families, so confirm your engine year first. Is it set up for street driving? It can be driven on the street, but the trans-brake and valve body are tuned for the strip.