Knuck/Flat Head

I'll Start... Post a pic of your Knuck!

Started by Robin

Replies: 10
Views: 12,212

February 06, 2023, 02:46:45 PM
by harpwrench

Show Your Flathead

Started by ShovelheadDave

Replies: 9
Views: 5,218

January 30, 2023, 07:21:24 AM
by Snuff™

My New Flathead Chopper

Started by Pzokes

Pages1 2 3  All

Replies: 55
Views: 24,991

January 20, 2014, 06:14:41 AM
by Carl 1969

It's OK to Share!

Started by Scooter1-2putt

Replies: 9
Views: 13,087

December 13, 2009, 06:35:51 AM
by 06DYNA

My 47 Knuckle bobber project

Started by poorbiker

Pages1 2  All

Replies: 28
Views: 12,280

December 30, 2011, 04:33:03 PM
by Pzokes

increasing performance on a flathead

Started by hotroadking

Replies: 14
Views: 9,434

June 09, 2009, 11:11:05 AM
by ohio-rider

Keihin CV carb

Started by pamens

Replies: 7
Views: 8,314

June 30, 2009, 03:34:55 PM
by Ultrashovel

Knuckle top on Pan/gen Shovel/cone Shovel lower info.

Started by Lyle

Replies: 14
Views: 7,640

July 13, 2014, 06:34:05 PM
by Lyle

1937 UL

Started by codyshop

Replies: 14
Views: 7,407

June 09, 2009, 07:19:51 AM
by Ultrashovel

vld gas tank water transfers or emblems, decals?

Started by hd76fxlr

Replies: 7
Views: 7,322

October 22, 2009, 07:19:41 AM
by ricochet

S&S 93" Knucklehead Engines

Started by leafman60

Replies: 4
Views: 6,174

February 19, 2018, 05:52:25 PM
by koko3052

Knuckle Head oil question

Started by RTMike

Replies: 1
Views: 6,008

March 29, 2023, 12:25:25 PM
by SP33DY

Aluminum cylinders for flatheads

Started by trex

Replies: 11
Views: 5,663

August 29, 2015, 09:51:44 AM
by panic

Knucklehead "belly" numbers

Started by tbickle22

Replies: 4
Views: 5,418

October 21, 2009, 09:31:41 AM
by Speeding Big Twin

Odd knuck serial number

Started by Jimmer

Replies: 9
Views: 5,288

August 30, 2015, 07:17:35 AM
by Ultrashovel

Buddy of mine just got this knuckle ,,,

Started by iiggii

Replies: 13
Views: 5,241

March 15, 2010, 07:12:27 PM
by iiggii

Any one have any problems with oil not draining out of knuckle rocker cups ?

Started by iiggii

Replies: 4
Views: 5,163

June 18, 2020, 03:27:47 AM
by iiggii

47 knuck info needed

Started by Geezer_Glider

Replies: 10
Views: 5,093

October 11, 2009, 10:58:38 AM
by Ultrashovel

resleeve a K model??

Started by kmodel52

Replies: 12
Views: 4,947

June 26, 2014, 09:59:21 AM
by JohnFlorida

Valve/lifter covers

Started by Dudley Dorite

Replies: 2
Views: 4,704

February 20, 2019, 04:42:12 PM
by Dudley Dorite

1942 WLA bobber

Started by Super Dave

Replies: 14
Views: 4,387

April 09, 2016, 09:06:21 AM
by rbabos

47 FL Clutch upgrade ?

Started by yobtaf103

Replies: 1
Views: 4,298

August 14, 2019, 01:31:45 PM
by HogMike

Panhead Left Case on Knucklehead Right

Started by SanB2013

Replies: 3
Views: 4,289

January 13, 2019, 08:53:01 AM
by doctorevil

Listen to THIS Knucklehead!!!

Started by Robin

Replies: 6
Views: 4,226

April 09, 2010, 01:04:25 AM
by prodrag1320

knuckle valve seals

Started by vern

Replies: 16
Views: 4,224

August 27, 2011, 07:08:59 AM
by War Horse

last year of the 45" flatty

Started by garyajaz

Replies: 10
Views: 4,190

October 21, 2010, 06:29:14 PM
by Ultrashovel

Need Knucklehead Heads

Started by eglideic

Replies: 9
Views: 4,188

November 28, 2009, 03:18:45 PM
by iiggii

fire ring

Started by ridgerider

Replies: 9
Views: 4,184

February 15, 2011, 09:14:09 AM
by ricochet

need cylinders

Started by ridgerider

Replies: 10
Views: 4,180

February 09, 2011, 04:56:50 AM
by ricochet

top end oiling

Started by vern

Replies: 8
Views: 3,944

May 12, 2011, 08:31:56 AM
by vern

Best Starting Carb for Knuckle??

Started by FlaHeatWave

Replies: 11
Views: 3,922

May 24, 2020, 03:00:31 PM
by SP33DY

'45 knuck

Started by Jimmer

Replies: 7
Views: 3,767

July 23, 2010, 08:26:36 AM
by Jimmer

Servicar rear end

Started by panheadfred

Replies: 1
Views: 3,753

September 07, 2009, 05:55:41 AM
by Pynzo

What year?

Started by fbn ent

Replies: 10
Views: 3,655

July 14, 2021, 05:35:11 PM
by Snuff™

Corrugated exhaust pipe

Started by CarlosGGodfrog

Replies: 5
Views: 3,622

February 20, 2022, 04:51:35 AM
by Hillside Motorcycle

KNUCKLEHEAD OIL PUMP

Started by HOLMES

Replies: 7
Views: 3,524

April 08, 2009, 05:25:26 AM
by ridgerider

royalite bubble bag rocket emblem

Started by hd76fxlr

Replies: 1
Views: 3,470

September 26, 2009, 02:50:52 PM
by Tsani

1966 Servi-Car

Started by dubepj

Replies: 5
Views: 3,467

August 29, 2015, 09:56:14 AM
by panic

To weld or not to weld? That is the question.

Started by ricochet

Replies: 9
Views: 3,460

January 19, 2012, 02:36:07 PM
by timtoolman

4 speed gears in a 3 speed case

Started by tenorhog

Replies: 3
Views: 3,459

August 27, 2013, 07:58:31 AM
by panic

looking for pictures of flat head hill climber

Started by HD/Wrench

Replies: 4
Views: 3,448

December 08, 2008, 12:44:15 AM
by Speeding Big Twin

Anyone running a new knuckle from S&S

Started by 1931jamesw

Replies: 4
Views: 3,398

February 25, 2013, 10:08:47 AM
by ricochet

Home made stuff for old primary set-up

Started by ricochet

Replies: 8
Views: 3,386

May 04, 2011, 09:17:37 AM
by ricochet

after market cyl.

Started by poorbiker

Replies: 9
Views: 3,362

April 17, 2009, 05:57:30 AM
by ricochet

CV Carb on a 45", good or bad idea?

Started by shovelheadjr

Replies: 5
Views: 3,343

July 13, 2009, 06:32:47 PM
by Ultrashovel

42 or 47

Started by ridgerider

Replies: 5
Views: 3,334

March 01, 2015, 08:24:39 PM
by Speeding Big Twin

Reproduction Left Case.....

Started by ModelABob

Replies: 6
Views: 3,311

October 29, 2009, 09:10:42 PM
by dablaze

Head bolt torque

Started by cHarley

Replies: 8
Views: 3,310

December 09, 2017, 08:54:29 AM
by cHarley

Barn find

Started by SOCS

Replies: 5
Views: 3,310

April 03, 2015, 02:47:12 AM
by moose

old sparkplug

Started by roadkingdresser

Replies: 4
Views: 3,284

September 01, 2010, 03:43:25 AM
by xlfan