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FLHTP 97

Started by evo58, March 13, 2021, 11:39:35 AM

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evo58

March 13, 2021, 11:39:35 AM Last Edit: March 13, 2021, 11:48:57 AM by evo58
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

Burnout

March 15, 2021, 12:15:22 PM #1
Isn't a P model for patrol?
I think the cop bikes were lower compression for longevity.

Or was that just shovels?
They don't call me Ironhead Rick just because I'm "hard headed"

thumper 823

March 15, 2021, 12:57:48 PM #2
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.
D Troop 3/5, - C/16 ,162AHC, Mekong delta.
Rising from the Ashes  UHIH

JW113

March 15, 2021, 02:57:09 PM #3
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
2004 FLHRS   1977 FLH Shovelhead  1992 FLSTC
1945 Indian Chief   1978 XL Bobber

thumper 823

March 15, 2021, 03:03:14 PM #4
That would help.
D Troop 3/5, - C/16 ,162AHC, Mekong delta.
Rising from the Ashes  UHIH

kd

March 15, 2021, 04:36:27 PM #5
The badged SE Evo heads were cut too.  IIRC it was .060".  That made them 10:1.
KD

thumper 823

March 15, 2021, 05:15:22 PM #6
If they got the squish dwn to something respectable, and a CCP of 10.5, it would be a runner!
D Troop 3/5, - C/16 ,162AHC, Mekong delta.
Rising from the Ashes  UHIH

evo58

March 15, 2021, 07:04:49 PM #7
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
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