![]() For our small-displacement engine, stall speed was much lower than if we had this converter behind a torque-happy big-block. Stall speed varies greatly depending on your combination. Even though we can only foot brake it to around 3,000 rpm, the trans brake will allow the torque converter to reach its maximum “flash” stall speed, which should be well north of 3,500 rpm. And while the converter doesn’t offer a tremendous amount of stall speed (3,000 rpm on the foot brake with our combination), we opted for TCI’s full-tilt TH350 “Bracket Race” transmission, which has a trans brake to allow for a higher launch rpm. In fact, our TCI Ultimate StreetFighter torque converter is rated for 1,200 horsepower. We spoke with Will Vance at TCI and he gave us a suggestion on a torque converter that could handle the abuse. Specialized lockup torque converters are available but they’re expensive, so to get the best bang for our buck we went with an off-the-shelf torque converter. Additional cost applies for a quality inspected used drum.Turbo cars are picky about torque converters because you’re faced with needing stall speed to build boost off the line, but also needing the converter to fully engage and lock up on the big end. NOTE: IF you do not have a smooth type direct drum from an early TH400 or 4L80E, you will need one to use the 34 element sprag. It will have a complete kit with High Energy frictions throughout, new steels, torrington bearing upgrades for the output shaft to case, and a machined forward hub with torrington, new OEM rear band, low roller clutch, 34 element sprag, full set of bushings, thrust washers, HD intermediate snap ring, high flow filter, paper/rubber set, and case connector. It is an upgrade from the TH400 RACE FULL KIT. This kit includes all the rebuild components that we use to build our Stage 2 TH400 units. ![]() Includes everything in our Stage 4 Rebuild Kit with the addition of the 36 Element Sprag and Iron Super Drum. Includes everything in our Stage 3 Rebuild Kit with the addition of the Billet Intermediate Shaft and we replace the 4340 Billet Input Shaft with the 300M Billet Input Shaft in order to hold higher power. Includes everything in our Stage 2 Rebuild Kit with the addition of the 4340 Billet Input Shaft. This is our base line kit and includes everything described above. It will include a low roller clutch upon request and the style filter and band you need for the year or your core. HD intermediate snap ring, rear torrington bearing, machined forward hub with torrington bearing, 34 element sprag, and instructions/parts to make your own hydraulic improvements without buying a valve body kit. New internal harness, shift solenoids, and pressure manifold switch. Hughes Performance Full Manual Valve Body 1967-90 Mopar TF8/A727 & 1968-99 Mopar TF6/A904. 715.99 Estimated to ship direct from manufacturer on 11/17/23, pending manufacturer availability. Estimated to ship direct from manufacturer on 11/28/23, pending manufacturer availability. GM TH350 Reverse Shift Pattern With Transbrake View Details. New rear band, front band, filter, full bushing kit, thrust washer kit, new pressure regulator spring for additional pressure. Hughes Performance Replacement Gasket Set for GM Powerglide Transbrake Valve Body. It includes a master kit with High Energy frictions, new steels, bonded pistons, and additional friction for the direct. I read about a TH350 transbrake that had a 'safety' feature built into that 'that will not activate reverse unless the transbrake button is activated'. ![]() This kit includes all the rebuild components we use to build our STAGE 2 4L80E units. Will a transbrake still allow me to launch at 3000-4000 rpm if I am running a stock stall speed TC, or will it limit the rpms to the TCs stall speed 2. If it is beyond your skill level, please have a professional technician build the transmission for you. We will provide instructions for our upgrade parts, but basic rebuilding questions will NOT be answered. We cannot rebuild your transmission over the phone or email. PLEASE understand that we are selling you the kit, not the rebuild. Our kits contain the same high quality parts that we use to rebuild our units. I called them like 4 times to get clarification on stuff and they. Due to popular demand we are offering a select few rebuild kits for the DIY rebuilder. I got a tci 321500 transbrake valve body kit and couldn’t find much on what I needed to do.
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