I have a car with 373 gears in it and a 4 speed transmission. At 65 MPH it runs at 3200 rpm. Will driving this occasionally at this rpm for a two hour trip hurt the motor? Or should I look at a 5 speed transmission?

Asked by Sep 30, 2014 at 12:10 PM about the 1955 Chevrolet Bel Air Base

Question type: Car Customization

Motor is a modified 350 CI

3 Answers


That all depends on how much modification was done to the engine. If it was blue printed and balanced then they should have told you what the red line should be, take that figure, cut it half and you have your engines cruise rpm's.

Best Answer

all you need to do is put a taller tire on it...ok

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Thanks. I found the answer very helpful

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