Topic: changing up an '81'
in Forum: C3 General Discussion
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A 700R4 has a final drive of .7:1, compared to the TH 350/400 of 1:1. With an rear end ratio of 2.87:1, a 700R4 may be a bit tall. There is an engine rpm calculator at powerblock.com. Using 285/50R15 tires, you'd be turning 1300 rpm at 55mph. With that rear end, I'd keep the three-speed and spend the money on engine!! Just my two cents...
Has anyone here done the 700R4 or 2004R conversion? If so, how did you handle the torque converter lockup?
http://www.powerblocktv.com/resources/
Has anyone here done the 700R4 or 2004R conversion? If so, how did you handle the torque converter lockup?
http://www.powerblocktv.com/resources/
"Let them that don't want none have memories of not gettin' any."
- Brother Dave Gardner
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Rochester, NY - USA
Joined: 6/12/2012
Posts: 95
Vette(s): 1980 L- 82 fully restored and upgraded.
Lock up is pretty easy , you can buy a B&M controller , or use a toggle switch like i do because I only want lock up at highway speeds .
|UPDATED|2/1/2014 9:02:02 AM (AZT)|/UPDATED|
|UPDATED|2/1/2014 9:02:02 AM (AZT)|/UPDATED|
1980 , ZZ430 , 3.92 rear , 700R4 2400 stall NEW EZ EFI
Lifetime MemberAsh Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
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|UPDATED|2/1/2014 12:56:18 PM (AZT)|/UPDATED|
Dave C..........My mantra: I can not be bought!! Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"
Yeah, I know, Shut up Dave.
Yeah, I know, Shut up Dave.
Lifetime Member #192
in Forum: C3 General Discussion
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