Thread: 454 vs 700R4
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Old 03-29-2011, 03:44 PM
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gullion454
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MASTER JOURNEYMAN
 
Join Date: May 2003
Posts: 35
Default 454 vs 700R4

I have a fresh 454 in a '72 Chevelle. Right now I have a TH400 with a 3000 rpm converter and 4.11 gears. I found that I spending more time on the street than the strip and want overdrive because at 55-60 mph I am running about 3200-3500 rpm. I have a 700R4 with about 50,000 miles on it in a '89 Chevy 2500. I guess my question is should I swap the TH400 for the 700R4 and is there anything that I should think about before I start? Will the 700R4 hold up the the big block? All help would be great. Thanks.
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