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Old 09-11-2020, 01:51 PM   #1
NHRA1926
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Default 454/365 rpm

What kind of RPM should be used as shift points or finish line RPM for 454/365 engine combination? I've heard any where from 5800-7500. Pretty sure these are an oval port head, so I know they wont flow like the rectangular port head at higher RPM.
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Old 09-11-2020, 02:10 PM   #2
Tim H
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Default Re: 454/365 rpm

Factory rated 454/365hp was definitely an oval port head. If this is a legal stock engine the cam profile and associated hardware typically dictates that shift rpm will be significantly higher than a "basic" 454. Numerous factors to consider as with any engine but generally I can say 6500 -6700 would not surprise me.
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Old 09-12-2020, 10:51 AM   #3
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Default Re: 454/365 rpm

Quote:
Originally Posted by Tim H View Post
Factory rated 454/365hp was definitely an oval port head. If this is a legal stock engine the cam profile and associated hardware typically dictates that shift rpm will be significantly higher than a "basic" 454. Numerous factors to consider as with any engine but generally I can say 6500 -6700 would not surprise me.
Not many will make much power above 6300
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Old 09-12-2020, 01:27 PM   #4
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Default Re: 454/365 rpm

Shift at 6K. I run the 72 version 360hp and have found that works best for me.
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Old 09-17-2020, 09:49 PM   #5
Chipper Chapman
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Default Re: 454/365 rpm

Our 71 365hp combo liked 63-6600 area on the shifts
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