Knuck/Flat Head

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

Started by Robin

Replies: 10
Views: 12,191

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

Show Your Flathead

Started by ShovelheadDave

Replies: 9
Views: 5,208

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

My New Flathead Chopper

Started by Pzokes

Pages1 2 3  All

Replies: 55
Views: 24,926

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

My 47 Knuckle bobber project

Started by poorbiker

Pages1 2  All

Replies: 28
Views: 12,278

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

knuckle valve seals

Started by vern

Replies: 16
Views: 4,223

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

1937 UL

Started by codyshop

Replies: 14
Views: 7,403

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

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

Started by Lyle

Replies: 14
Views: 7,626

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

1942 WLA bobber

Started by Super Dave

Replies: 14
Views: 4,373

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

increasing performance on a flathead

Started by hotroadking

Replies: 14
Views: 9,433

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

Buddy of mine just got this knuckle ,,,

Started by iiggii

Replies: 13
Views: 5,239

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

resleeve a K model??

Started by kmodel52

Replies: 12
Views: 4,913

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

Aluminum cylinders for flatheads

Started by trex

Replies: 11
Views: 5,638

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

Best Starting Carb for Knuckle??

Started by FlaHeatWave

Replies: 11
Views: 3,898

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

need cylinders

Started by ridgerider

Replies: 10
Views: 4,179

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

last year of the 45" flatty

Started by garyajaz

Replies: 10
Views: 4,187

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

47 knuck info needed

Started by Geezer_Glider

Replies: 10
Views: 5,086

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

What year?

Started by fbn ent

Replies: 10
Views: 3,640

July 14, 2021, 05:35:11 PM
by Snuff™

It's OK to Share!

Started by Scooter1-2putt

Replies: 9
Views: 13,084

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

Need Knucklehead Heads

Started by eglideic

Replies: 9
Views: 4,183

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

after market cyl.

Started by poorbiker

Replies: 9
Views: 3,359

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

fire ring

Started by ridgerider

Replies: 9
Views: 4,182

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

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

Started by ricochet

Replies: 9
Views: 3,458

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

Odd knuck serial number

Started by Jimmer

Replies: 9
Views: 5,277

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

top end oiling

Started by vern

Replies: 8
Views: 3,942

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

Head bolt torque

Started by cHarley

Replies: 8
Views: 3,295

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

KNUCKLEHEAD FRONT MOTOR MOUNTS

Started by HOLMES

Replies: 8
Views: 3,160

April 14, 2009, 10:12:24 PM
by iiggii

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

KNUCKLEHEAD OIL PUMP

Started by HOLMES

Replies: 7
Views: 3,523

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

vld gas tank water transfers or emblems, decals?

Started by hd76fxlr

Replies: 7
Views: 7,320

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

cast welding

Started by poorbiker

Replies: 7
Views: 3,071

May 26, 2009, 04:18:54 AM
by Don D

Keihin CV carb

Started by pamens

Replies: 7
Views: 8,313

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

'45 knuck

Started by Jimmer

Replies: 7
Views: 3,765

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

Listen to THIS Knucklehead!!!

Started by Robin

Replies: 6
Views: 4,225

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

What is it worth?

Started by Super Dave

Replies: 6
Views: 3,100

October 22, 2015, 04:15:55 PM
by rigidthumper

Reproduction Left Case.....

Started by ModelABob

Replies: 6
Views: 3,310

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

NITRO guys aint right!!!!

Started by prodrag1320

Replies: 6
Views: 3,110

April 01, 2011, 03:27:10 AM
by dog155

Flathead Heads

Started by JamLazyAss

Replies: 6
Views: 2,236

June 08, 2021, 04:54:15 PM
by PC_Hater

40-46 tank badges, please give me your opinion...

Started by MARCE

Replies: 5
Views: 3,132

October 06, 2017, 04:56:24 AM
by MARCE

Needed Left Engine Case for a 1947

Started by eglideic

Replies: 5
Views: 2,705

December 23, 2008, 09:19:09 AM
by jimlibo

Headwork, valves and seats

Started by ricochet

Replies: 5
Views: 2,796

June 11, 2009, 10:46:35 AM
by ricochet

Going to look at a 39'

Started by BBQBIKER

Replies: 5
Views: 2,988

September 06, 2015, 11:04:54 AM
by panic

cam ID

Started by cosmiccowboy

Replies: 5
Views: 2,467

June 22, 2009, 06:51:38 PM
by cosmiccowboy

Barn find

Started by SOCS

Replies: 5
Views: 3,305

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

Has anyone tried a set of the alum knuckle heads ?

Started by iiggii

Replies: 5
Views: 2,585

June 16, 2020, 01:43:37 PM
by iiggii

1966 Servi-Car

Started by dubepj

Replies: 5
Views: 3,457

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

Installing electronic timer on 47

Started by ricochet

Replies: 5
Views: 2,506

June 15, 2009, 05:24:21 AM
by ricochet

42 or 47

Started by ridgerider

Replies: 5
Views: 3,331

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

47 El

Started by cosmiccowboy

Replies: 5
Views: 2,286

March 11, 2009, 01:04:05 PM
by cosmiccowboy

The rebuild on my 45 has started

Started by PC_Hater

Replies: 5
Views: 2,892

January 12, 2016, 04:25:47 PM
by Super Dave

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

Started by shovelheadjr

Replies: 5
Views: 3,340

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