HarleyTechTalk

Technical Forums => EVO 1340 => Topic started by: evo58 on March 13, 2021, 11:39:35 AM

Title: FLHTP 97
Post by: evo58 on March 13, 2021, 11:39:35 AM
My buddy just bought a FLHTP 97  its like a Road King , long time ago i was reading a book that stated these bike has 9:5:1 CR  , and wasnt in the heads , the Moco took  on the cylinder base , so the engine is sharper,
Someone alredy read this ? I cant remenber what was the book
This is true ?..
Thanks in advance
Evo
Title: Re: FLHTP 97
Post by: Burnout on March 15, 2021, 12:15:22 PM
Isn't a P model for patrol?
I think the cop bikes were lower compression for longevity.

Or was that just shovels?
Title: Re: FLHTP 97
Post by: thumper 823 on March 15, 2021, 12:57:48 PM
If he removed the  base gasket he was fussing with the squish and deck Ht
It will not do much for raising the CCC but will make it run a lot better.
The trouble with the stock Evo head is the design.
Most modify it to a better configuration.
Title: Re: FLHTP 97
Post by: JW113 on March 15, 2021, 02:57:09 PM
My local shop guy told me that every EVO cop bike the ever took apart (mostly FXRPs) had 50 thou shaved from the heads from the factory.

-JW
Title: Re: FLHTP 97
Post by: thumper 823 on March 15, 2021, 03:03:14 PM
That would help.
Title: Re: FLHTP 97
Post by: kd on March 15, 2021, 04:36:27 PM
The badged SE Evo heads were cut too.  IIRC it was .060".  That made them 10:1.
Title: Re: FLHTP 97
Post by: thumper 823 on March 15, 2021, 05:15:22 PM
If they got the squish dwn to something respectable, and a CCP of 10.5, it would be a runner!
Title: Re: FLHTP 97
Post by: evo58 on March 15, 2021, 07:04:49 PM
Quote from: JW113 on March 15, 2021, 02:57:09 PM
My local shop guy told me that every EVO cop bike the ever took apart (mostly FXRPs) had 50 thou shaved from the heads from the factory.

-JW
. Thats exactly what i read years ago !!! I cant remenber where  ,but it was 50 thou off  , so i told to the guy to install a W6 or EV27
Thanks