Now the dilemma..have it rebuilt with some heavy duty parts, or just buy a built TH400. Was planning on doing a 470 motor this winter..possibly a 482. Any thoughts on a 700R4 being able to handle 550-600hp reliably?
I would have it rebuilt with good parts. Giving up the overdrive gear would suck in my opinion. Plus the car is setup for the 700 already.
I have much success with all my 200-R4 tranny's Go to California Performance Transmission.com Art Carr builds 1000hp trans. They bolt right up to our engines. A good article on Hot Rod.com How to Build a TH200R4 trans for Drag racing. Good Luck.
not to mention to swap the a th400 you will need another drive shaft move the crossmember again all that. plus if you have deep gears thats going to suck.
well, after research and talking to a local tranny guy, I'm going to go with a built Turbo 400. I'll miss the OD, but it seems like a bulletproof 700R4 isn't a common thing.
Are you going to race it regularly and generally thrash it? If so, I'd go with a Turbo 400. If you are going to do an occasional 1/4 mile blast, check out a hearty Turbo 200-4R. They can handle a lot of power if done properly and they have better gear spacing.
Or order one http://extremeautomatics.com/index.php?category=63&searchtext= https://www.monstertransmission.com...ace-Transmission-2WD_p_5230.html#.YLb7ZS9h3PA
http://www.cpttransmission.com/index.htm Same money, better gear spacing, OD for the Freeway. https://www.hotrod.com/articles/ccrp-0903-th-200-4r-transmission-build/
The previous Tranny was a Monster. I didn't buy it, but I believe it had less than 10,000 miles. Heard nothing but bad things, and my experience is the same with them.
I'm sure my car's future will be more and more drag strip action. I know a 400 is the strongest out there, so making the change with future power upgrades in the future.
You could go with a 4L80E, or the route I took 15 years ago, a Gear Vendors Overdrive. They are rated to 1200 HP.
Ordered a custom built Turbo 400 that should be rated for 900 HP. Can’t wait to feel the difference. I hated how the 700 shifted!
