My 1978 Chevy Malibu just came out of the body shop from a great restoration on the body...the body is finally GORGEOUS! ! ! With that said, I'm running a 355 small block, turbo 350 3 spd tranny, with 411's in the rear end. My problem is im doing 3500 - 4000 rpm on the highway at approx 60 mph. I know this can't be good for the engine and tranny. I'm looking to update either the tranny or the rear end to todays technology and highway rpms. Any Suggestions?
I would put in a overdrive tranny.That way you do not loose any performance.You should gain a little,because the overdrive trannys have a lower first gear than your th350.A 700r4 should bolt wright in.Depending which tail houseing is on your th350,you might have to change your driveshaft length.Good luck.
Tranny for sure,but will a 700 really fit right in?? I thought the tail mount was in an unusual location? the 2004r is laid out with the tail mount at the same point as a turbo 400. either way you'll need a new driveshaft and yoke. many 70's frames were setup for both a 350/400 trans just by moving the crosmember
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