1000hp 727 full manual build

You still need the shield or blanket because it’s in the rule book that if you don’t have an SFI case you need to run one. Anything can fail, but it’s pretty unlikely the billet front drum will fail. Not that my opinion matters much.

Kim’s aluminum drum with steel liner is so that you can run Teflon sealing rings opposed to stainless steel rings with the aluminum drum. It’s a smart move. Yes the front aluminum drum will have small wear spots where the steels are splined into the drum but it’s not that much of a concern. The band is where wear comes from over time. The rear drum isn’t as much of a concern to run aluminum because there’s no band riding on the drum. It’s recommended by A&A to perform transmission service every 25-35 passes with an aluminum drum. I have multiple transmissions out there right now with aluminum front, rear, and low/reverse drums in them that have been in them for over 10 years with a lot of runs on them. low 9 second heavy cars. They are still going strong. My aluminum drum I ditched last year for steel but the drum was over 15 years old and I sold it because it was in good shape. Thats just my opinion and experience. I by no means know everything there is and I consider myself a humble person, but these 727s aren’t secretive and the upgrades are not difficult.

RJ