TH350 In A 94 Z28
#1
TECH Resident
Thread Starter
TH350 In A 94 Z28
Im having some MAJOR tranny issues with the current 4l60e. I dont think it would be cost effective to repair it so after talking to my lead mechanic, I have decided to get a TH350 built. Now I know a couple of the items Im going to need but I was wondering if anyone on here has already done it and has a complete parts list.
Also what kind of mileage difference can be observed after doing the swap? Im going to be keeping stock gears and tire height and I dont drive like a jackass.
Also what kind of mileage difference can be observed after doing the swap? Im going to be keeping stock gears and tire height and I dont drive like a jackass.
#2
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It will be around 8-900 rpm more on the highway. Ive went back and forth with th350 and 700r4 and 4l60e in the past. All i can say is i like overdrive too much to go back to a th350. Gas mileage will be noticably lesser but not much.I cant remember the weight difference but was considerable.
But basically you have to either get a long tailshaft th350 or legnthen your driveshaft, make provisions for your detent cable if aplicable as well as the vaccum modulator.
But basically you have to either get a long tailshaft th350 or legnthen your driveshaft, make provisions for your detent cable if aplicable as well as the vaccum modulator.
#3
TECH Resident
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Alright man appreciate it. My uncle can build me up a TH350 for little to nothing. Probably about the same as a stock used 4l60e. And it would pick up my performance potential considerably over a stock 60e.
#5
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Hahahaha. Hopefully it doesnt completely rape my gas mileage. It shouldnt do that bad though. Whats the 4th gear ratio of a 60e compared to the 3rd gear ratio of a 350?
#6
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Im in the process of doing a M6-TH350 swap. You will need pretty much everything i had to get minus the pedals and shifter as the stock a4 one can be modded for the A3.
Your going to need
-Trans with a 9in tail shaft if you plan on using the stock DS
-Trans crossmember for Th350/ with or without torque arm provisions depending on if you have a chassis mount torque arm already or not.
-Shifter for the A3 or mod the stock one
-Good trans cooler
-Stall converter
-You can also wire up the VSS to the front wheel speed sensor for your Speedo
Thats pretty much all i can think of right now.
Your going to need
-Trans with a 9in tail shaft if you plan on using the stock DS
-Trans crossmember for Th350/ with or without torque arm provisions depending on if you have a chassis mount torque arm already or not.
-Shifter for the A3 or mod the stock one
-Good trans cooler
-Stall converter
-You can also wire up the VSS to the front wheel speed sensor for your Speedo
Thats pretty much all i can think of right now.
#7
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You will see very little is any difference in milage around town. You will not the car being a little less responsive in 1st gear due to the higher first gear ratio. You will turn 30 percent more rpm at hwy speeds or more with a high stall converter. MPG hwy will suffer about the same.
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