The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Era Specific and Model Specific > Ironhead Sportster Motorcycle Talk (1957-1985)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

Active Threads
0 Superlow XL1200T tyres.
Last Post: lucifer_mr2
Posted On: 16 Minutes Ago
Replies: 0
Views: 7
0 Worst Harley rider ever.
Last Post: crazyphuzz
Posted On: 1 Hour Ago
Replies: 13
Views: 211
0 Crusty's Travels
Last Post: SonWon
Posted On: 1 Hour Ago
Replies: 1,515
Views: 152,650
10 New rider - XL1200S in Aus.
Last Post: JacksBrother
Posted On: 2 Hours Ago
Replies: 31
Views: 2,019
0 Lots of issues 78
Last Post: Mrhorn12
Posted On: 3 Hours Ago
Replies: 8
Views: 148
0 New to the Harley Brand
Last Post: juzyHD
Posted On: 3 Hours Ago
Replies: 14
Views: 179
0 What's your helmet?
Last Post: Nibelungen
Posted On: 4 Hours Ago
Replies: 51
Views: 2,567
0 Yetman drag frame
Last Post: Slojoe55
Posted On: 4 Hours Ago
Replies: 31
Views: 11,177
0 C.O.B.B run west
Last Post: sportsterpaul
Posted On: 4 Hours Ago
Replies: 226
Views: 16,079
0 Sizing cylinders too pistons
Last Post: Yakcm2
Posted On: 4 Hours Ago
Replies: 11
Views: 415
0 What did you do for your sporty Today?
Last Post: sportsterpaul
Posted On: 4 Hours Ago
Replies: 5,290
Views: 584,946
0 Shovester Sighting
Last Post: needspeed
Posted On: 6 Hours Ago
Replies: 67
Views: 7,251
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 6 Hours Ago
Replies: 41,221
Views: 6,320,441
0 1998 Sportster Ignition Problems
Last Post: james69
Posted On: 7 Hours Ago
Replies: 28
Views: 705
0 Starter circuit without relay
Last Post: ChicagoSlim
Posted On: 7 Hours Ago
Replies: 6
Views: 107
0 PLEASE READ THIS Before You Post In 'The BUY - SELL - TRADE Zone'!
Last Post: kk38k
Posted On: 7 Hours Ago
Replies: 2
Views: 1,039
0 I finally learned how to work the system!
Last Post: Ranchero50
Posted On: 8 Hours Ago
Replies: 8
Views: 250
0 Broken exhaust stud questions.
Last Post: Graywolf
Posted On: 8 Hours Ago
Replies: 7
Views: 245
0 Hot Rods, Rat Rods, and Customs.
Last Post: Graywolf
Posted On: 8 Hours Ago
Replies: 2,582
Views: 207,817
0 What coil(s) do you run with your Dyna S ignition?
Last Post: stanroyal
Posted On: 8 Hours Ago
Replies: 7
Views: 163
0 Anyone go racing last weekend?
Last Post: madnss
Posted On: 8 Hours Ago
Replies: 2,723
Views: 246,054
0 Hottie of the day, no nudity.
Last Post: trainman
Posted On: 9 Hours Ago
Replies: 7,594
Views: 559,246
0 Carb
Last Post: wedge
Posted On: 9 Hours Ago
Replies: 15
Views: 453
0 Issue until up to temp
Last Post: wedge
Posted On: 9 Hours Ago
Replies: 17
Views: 522
0 1981 XLH turns over won’t start
Last Post: 60Gunner
Posted On: 9 Hours Ago
Replies: 5
Views: 64
5 Legendary Jerry Branch on Gearing quote and question...
Last Post: groovemeisterus
Posted On: 9 Hours Ago
Replies: 0
Views: 56
0 77 idling
Last Post: fbroos73
Posted On: 9 Hours Ago
Replies: 2
Views: 88
6 Asgardia Regional area
Last Post: Toejam503
Posted On: 10 Hours Ago
Replies: 11
Views: 372
0 Sportsterpedia Progress
Last Post: IXL2Relax
Posted On: 10 Hours Ago
Replies: 164
Views: 32,619
More...
Members Birthdays
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #31  
Old 1 Week Ago
GA_Ironhead GA_Ironhead is offline
Senior Master Custom Bike Builder
 
Join Date: Mar 2006
Location: Athens, GA
Posts: 4,741
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1962
Reputation: 69686
GA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud ofGA_Ironhead has much to be proud of
Default

__________________
If you want to do something, you’ll find a way. If you don’t, you’ll find an excuse.
Reply With Quote
  #32  
Old 1 Week Ago
jimmyess333's Avatar
jimmyess333 jimmyess333 is offline
Master Custom Bike Builder
 
Join Date: Oct 2007
Location: Central Texas
Posts: 3,114
Sportster/Buell Model: none
Sportster/Buell Year: 0
Reputation: 56628
jimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to behold
Default

A little update:
I just did a little research and the info I found is as such (corrections welcome)
Chevy 350 has a 4 inch bore
Late 70's Ironhead 1000 has a stock stroke of 3.8 inch and a bore of 3.2 inch
I went onto a displacement calculator and it came out to about 1550 CCs.
I don't know how far an ironhead 1000 can be bored out but I would be very surprised it it can be bored nearly a full inch.
As for a 1550cc Sporty, even if there were aftermarket cylinders to support this I think it would have been talked about before now.
So I find it very doubtful that my buddy is putting Chevy 350 Pistons in his bike.
Reply With Quote
  #33  
Old 1 Week Ago
Chuckthebeatertruck's Avatar
Chuckthebeatertruck Chuckthebeatertruck is offline
Senior Master Bike Builder
 
Join Date: Jul 2014
Posts: 2,165
Sportster/Buell Model: Xlh
Sportster/Buell Year: 1959
Sportster/Buell Model #2: Sprint 350
Sportster/Buell Year #2: 1969
Other Motorcycle Model: Guzzi Ambassador
Other Motorcycle Year: 1969
Reputation: 536788
Chuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond reputeChuckthebeatertruck has a reputation beyond repute
Default

Quote:
Originally Posted by jimmyess333 View Post
As for a 1550cc Sporty, even if there were aftermarket cylinders to support this I think it would have been talked about before now.
It's talked about regularly and there are aftermarket cylinders that support big bores on ironheads.

The main thing to help you educate yourself is that it's relatively rare to find an ironhead person speaking in metric terms -- so no, you won't find people talking about 1500cc ironheads; but if you change your search parameters you will find them talking about 74, 84, and 92 cubic inch ironheads -- almost always with the term "stroker."

1500cc = about 90 cubic inches.

Here's one example:
http://xlforum.net/forums/showthread.php?t=1208660

And, here's a current build:
http://xlforum.net/forums/showthread.php?t=2005894

The builder in the current example is aiming at a 3-7/16 bore by 5 inch stroke. This equals 92 cubic inches or 1520 cc.

But, no, they don't use Chevy 350 pistons on these builds.

Long story short, if you can dream it; someone's probably tried it.

Whether they've announced it on-line is a different matter. Some of the best stuff out there has never made it to the internet.
Reply With Quote
  #34  
Old 1 Week Ago
jimmyess333's Avatar
jimmyess333 jimmyess333 is offline
Master Custom Bike Builder
 
Join Date: Oct 2007
Location: Central Texas
Posts: 3,114
Sportster/Buell Model: none
Sportster/Buell Year: 0
Reputation: 56628
jimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to behold
Default

Quote:
Originally Posted by Chuckthebeatertruck View Post
It's talked about regularly and there are aftermarket cylinders that support big bores on ironheads.

The main thing to help you educate yourself is that it's relatively rare to find an ironhead person speaking in metric terms -- so no, you won't find people talking about 1500cc ironheads; but if you change your search parameters you will find them talking about 74, 84, and 92 cubic inch ironheads -- almost always with the term "stroker."

1500cc = about 90 cubic inches.

Here's one example:
http://xlforum.net/forums/showthread.php?t=1208660

And, here's a current build:
http://xlforum.net/forums/showthread.php?t=2005894

The builder in the current example is aiming at a 3-7/16 bore by 5 inch stroke. This equals 92 cubic inches or 1520 cc.

But, no, they don't use Chevy 350 pistons on these builds.

Long story short, if you can dream it; someone's probably tried it.

Whether they've announced it on-line is a different matter. Some of the best stuff out there has never made it to the internet.
Can you bore a stock cyl out to to accommodate a 4 inch piston?
That's what this guy is claiming to have done.
Reply With Quote
  #35  
Old 1 Week Ago
Graywolf's Avatar
Graywolf Graywolf is offline
XL FORUM LIFE MEMBER
 
Join Date: Dec 2009
Location: Shack in Florida swamp
Posts: 1,958
Sportster/Buell Model: XLH 1200
Sportster/Buell Year: 1998
Sportster/Buell Model #2: XL 883/1200 conversion
Sportster/Buell Year #2: 2001
Other Motorcycle Model: 2nd 01 XLC
Other Motorcycle Year: 2001
Reputation: 4061450
Graywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond reputeGraywolf has a reputation beyond repute
Default

Quote:
Originally Posted by jimmyess333 View Post
Can you bore a stock cyl out to to accommodate a 4 inch piston?
That's what this guy is claiming to have done.
Maybe...... the Zippers big bore 88 inch cylinder kits are 3 13/16 bore. Probably can't bore a stock cylinder that big.

There is a warning on the Zippers kit that says 3 13/16 is the largest bore the cases can safely stand.
__________________
Graywolf
I used to be sane, but I am better now.
Reply With Quote
  #36  
Old 1 Week Ago
rejeanprimeau's Avatar
rejeanprimeau rejeanprimeau is offline
XL FORUM TEAM MEMBER
 
Join Date: Jun 2011
Location: On a farm
Posts: 5,657
Sportster/Buell Model: XL77.2R
Sportster/Buell Year: 2006
Reputation: 1803774
rejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond reputerejeanprimeau has a reputation beyond repute
Default

How about those shovester???
Reply With Quote
Sponsored Links
  #37  
Old 1 Week Ago
ChinCactus's Avatar
ChinCactus ChinCactus is offline
XL FORUM TEAM MEMBER
 
Join Date: Feb 2010
Location: Webster, NY
Posts: 3,676
Sportster/Buell Model: XL 883/1200 Hugger
Sportster/Buell Year: 1995
Sportster/Buell Model #2: 11 RK
Other Motorcycle Model: 72 Triumph Daytona
Reputation: 1924412
ChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond reputeChinCactus has a reputation beyond repute
Default

Quote:
Originally Posted by jimmyess333 View Post
Thanks guys. This friend of mine does tell some tales. I don't want to call him out, I just want to know for myself. Sometimes I let him go because I want to hear how far the story will go.
Used to work with a guy who was full of great stories. Of course we all knew they were bullshit, but they were entertaining so we just let him go on.

__________________
...Once in a while you get shown the light, in the strangest of places if you look at it right...~Robert Hunter/Jerry Garcia
(In honor of Ruby Red "Beebe")
Reply With Quote
  #38  
Old 1 Week Ago
ryder rick's Avatar
ryder rick ryder rick is offline
Senior Master Custom Bike Builder
 
Join Date: Jun 2008
Location: Cornelius, OR
Posts: 7,630
Reputation: 396581
ryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond reputeryder rick has a reputation beyond repute
Default

You can't do a 4" bore on an Ironhead unless you weld the lifter holders into the case when you add the needed material to that side of the case spigot.

Don't know how long that would last though. A lot of welding and machine work. Then you still have to work the heads, moving the bolt pattern out and what not.

Ideally the way to do that would be to make a case with the cam and lifter bores offset to accommodate the huge bore.
__________________
Ryder Rick "All oil threads should be killed"
Reply With Quote
  #39  
Old 1 Week Ago
jimmyess333's Avatar
jimmyess333 jimmyess333 is offline
Master Custom Bike Builder
 
Join Date: Oct 2007
Location: Central Texas
Posts: 3,114
Sportster/Buell Model: none
Sportster/Buell Year: 0
Reputation: 56628
jimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to beholdjimmyess333 is a splendid one to behold
Default

Quote:
Originally Posted by ryder rick View Post
You can't do a 4" bore on an Ironhead unless you weld the lifter holders into the case when you add the needed material to that side of the case spigot.

Don't know how long that would last though. A lot of welding and machine work. Then you still have to work the heads, moving the bolt pattern out and what not.

Ideally the way to do that would be to make a case with the cam and lifter bores offset to accommodate the huge bore.

They don't call me Ironhead Rick just because I'm hard headed
That would be with aftermarket cylinders, right?
Can the OEM cylinder go to 4 inches?
Reply With Quote
  #40  
Old 1 Week Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 8,271
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1278560
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

hehehehehaw!

well, you could make a cross-head cylinder arrangement, lot of old engines were like that, been around a few. even honda designed a prototype.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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



Sponsored Links
All times are GMT +1. The time now is 10:01.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC