Improvments to a 4-134 f head
buddhistguy
Jeeper
- Posts
- 6
- Thanks
- 0
- Location
- Ft Collins, CO
- Vehicle(s)
- I have a 66 CJ5. It has a 4-134 f head, t90c 3 speed transmission, Spicer 18 transfer case, Dana 27 front axle, and Dana 44 rear axle.
I have a 66 CJ5 with a 4-134 f head. Am thinking of keeping it all original. Wanting to rebuild it and go 50 over. Replace the old oil bath air filter with a cold air intake. Is there a way to install an Overdrive on the warner T-90 3 speed? Would like to get a better top speed. I know I will never have a 70 mph vehicle. Any advise would be appreciated. Also recommendations on a replacement drive train if that turns out to be the best option.