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NHRA1926 09-11-2020 01:51 PM
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.

Tim H 09-11-2020 02:10 PM
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.

Jim Hanig 09-12-2020 10:51 AM
Re: 454/365 rpm
 
Quote:
Originally Posted by Tim H (Post 623217)
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

nwebber 09-12-2020 01:27 PM
Re: 454/365 rpm
 
Shift at 6K. I run the 72 version 360hp and have found that works best for me.

Chipper Chapman 09-17-2020 09:49 PM
Re: 454/365 rpm
 
Our 71 365hp combo liked 63-6600 area on the shifts


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