318/8 Speed Swap
I finally got my hands on an 8 speed transmission (8HP70) out of a 2018 Challenger this weekend. This particular one looks to be from an SRT 6.4 Hemi car. Supposedly, it only has 5,000 miles on it.
I was able to get it mounted to a spare 318 I had in the shop. There are some custom adapter pieces to be made/purchased, but it can be done. For those that are wondering, this is an electronically-controlled transmission that will require a standalone transmission controller. There are a few guys out there working on that end of it with this and other OEM transmissions (Ford 6R80 and 10R80). The idea is to be able to run a carburetor or standalone fuel injection system on the engine, then a separate system for the 8 speed. Obviously, the advantage of the 8 speed is close gear ratios and two overdrives (0.84:1 and 0.67:1).
For now, my plan is to use it for mock-up purposes, then sell it and pick up a built 8HP70. By then, I should have enough details lined out to pass that information along to the next owner.
I finally got my hands on an 8 speed transmission (8HP70) out of a 2018 Challenger this weekend. This particular one looks to be from an SRT 6.4 Hemi car. Supposedly, it only has 5,000 miles on it.
I was able to get it mounted to a spare 318 I had in the shop. There are some custom adapter pieces to be made/purchased, but it can be done. For those that are wondering, this is an electronically-controlled transmission that will require a standalone transmission controller. There are a few guys out there working on that end of it with this and other OEM transmissions (Ford 6R80 and 10R80). The idea is to be able to run a carburetor or standalone fuel injection system on the engine, then a separate system for the 8 speed. Obviously, the advantage of the 8 speed is close gear ratios and two overdrives (0.84:1 and 0.67:1).
For now, my plan is to use it for mock-up purposes, then sell it and pick up a built 8HP70. By then, I should have enough details lined out to pass that information along to the next owner.
