Built Like a Tank: Our Big-Block-Powered ’61 Bel Air needs a new transmission. A bulletproof Gearstar 4L80E is the perfect solution The big boss needs a new transmission for his ’61 Bel Air, and his ...
It's the 4L80E that’s become the go-to choice for backing a big-power/big-torque engine, and for good reason. With its roots in the TH400, which was used with GM’s biggest-torque big-block engines of ...
GM’s 4L80E overdrive automatic is the latest in a continuing legacy of rugged Turbo-Hydramatic transmissions from Chevrolet. Fifty years ago, the TH350 and the TH400 transmissions were a new ...
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