Powerglide. Shorter, look better in v-drives. These are tough enough for dragsters and dirt trackers. only weigh 89 pounds with out convertor. Save park for tuning, etc. 1st gear good for idling around no wake zones. I have never used a cooler. had one in every v-drive. Present one is on its 8th year. My setup is similar to this one. unable to find my pics.
Mikes transmission in Lancaster cab build you a glide for up to 2000hp he’s pretty reasonable considering. He races on what he builds. Hard to find guys like this anymore.