Exploring two options.......? - Page 2 - Road Glide Forums
Road Glide Forums

Go Back   Road Glide Forums > Road Glide Specific Discussions > Engine Related

Engine Related Engine Builds and more for Road Glides

Sponsored by Drago's Bike Works

Order T-Shirts Here

Motorcycle Superstore

Make sure to Visit our Sponsors. They keep this site FREE!

Partner Links

Motorcycle Superstore

Thread Tools Display Modes
Old 11-16-2012, 06:25 AM
Hillsidecycle.com Hillsidecycle.com is offline
Engine Expert
Join Date: Oct 2011
Location: Munnsville,N.Y.
Posts: 969
Send a message via AIM to Hillsidecycle.com

The airflow for that engine, even in OEM trim is compromised.
Professional cylinder head work(not some "street port" stuff)along with the proper cam selection, for your riding style will be by far, the most cost effective route.
Naturally we would like to see the bore increased to 3.934", (107") as the larger valve reliefs are in place, to accomodate the 1.940" intake valve we would use in our Stage III Sport-Touring Head, but the OE 103" pistons can be modified in a piston vise/vertical milling machine.
"Over 25 plus years of Harley-Davidson engine building, and cylinder head work."
Complete machine shop
Complete cylinder head shop
Dyno tuning
Extended Warranty Center
MMI Certified Mechanics
Stocking Dealer for;
S&S Cycle
Axtell Sales
Wood Performance
Horse Power Inc.
Andrews Products
Rivera Engineering
Bandit Machine Works
"Land Speed Record Power"
5225 South Main St.
Munnsville, N.Y. 13409
315-495-6650 phone/fax
M-F 8-5, Sat 8-12 or by appt.
Reply With Quote Quick reply to this message
Sponsored Links
Old 11-16-2012, 04:10 PM
StephenRG's Avatar
StephenRG StephenRG is offline
Grey beard
Join Date: Dec 2011
Location: Stony Plain, AB, Canada
Posts: 941

I'm with Scott a/o 'option a'. A 103" can give you lots of power and torque if done right. Heads, cam, and a proper tune can do wonders and be more than enough for most riding.

Of course there is no replacement for displacement...

'10 RG "Black Betty"
HQ 103"
HQ 575 cam
16" TRSSC Cee Bailey Windshield
Sancho's Wings
Mustang Seat
J & M Speakers
Drago's True Duals
Apparently not as black as I thought...

Reply With Quote Quick reply to this message
Old 11-16-2012, 04:48 PM
Fire-Medic's Avatar
Fire-Medic Fire-Medic is offline
Grey beard
Join Date: Mar 2012
Location: South, FL
Posts: 1,212

Thanks everyone for their input, I still have not made a final decision I am back and forth between both, probably just because either would cost about the same........
2013 RGU Ember Red Sunglo (Under Construction)

Last edited by Fire-Medic; 11-18-2012 at 06:46 PM.
Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the Road Glide Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:26 PM.

Design By: Miner Skinz.com
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
H-D, Harley-Davidson, and Harley-Davidson Logos are registered trademarks of H-D Michigan, Inc. Harley-Davidson in no way endorses or is affiliated with this site.