88v8 Ivor Duarte Gloucestershire UK (1041 posts) Registered: 02/11/2010 04:29AM Main British Car: 1974 Land Rover Lightweight V8 |
TH350 swap for 700 or 200?
This TR6 that I flagged
[forum.britishv8.org] with the 350 SBC and, I assume, TH350 (the seller bought it as 'an investment' and doesn't know what box it has except it's 3-speed) would there be major problems converting it to a 700R4 or 200-4-R? What I can see..... 700 is the same length as 350 but rather heavy. Mounts are the same. 200 is same length but mounts differ. Both 200 and 700 have their fans and detractors. If this is not a major swap, perhaps I should go look at the car. Ivor |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6468 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: TH350 swap for 700 or 200?
My understanding is that it's almost a bolt-in swap. You have to wire it for a TCC switch but it can be fully manual.
The 700r4 is common and easy to find. The 2004r has better gear ratios for a sports car. Jim |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: TH350 swap for 700 or 200?
What Jim said X2
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KadettB David Stephens SLC, UT (10 posts) Registered: 07/14/2017 03:41PM Main British Car: Absolutely original custom freak TBD, probably '98 Vortec 7400 |
Re: TH350 swap for 700 or 200?
200-4R is same length as short-tail TH350. 700R-4 ratios look bad on paper, but everyone forgets the torque converter. The 700 drives NO worse than any other automatic, and thanks to it's excellent ratios and lockup converter, it drives better when you get the converter stall and throttle valve cable adjustment right. The only reason to ever choose anything else is if you're making over 650 foot-pounds. Then you need a 4L80E. It can be built to hold over 1500
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