Ironhead A place to talk about Ironheads.

CAMS

Thread Tools
 
Search this Thread
 
Old Jan 30, 2026 | 08:14 AM
  #1  
Ron Pinette's Avatar
Ron Pinette
Thread Starter
|
Intermediate
5 Year Member
Liked
Joined: Jul 2019
Posts: 38
Likes: 6
From: Patten, Maine
Default CAMS

Can a combo of cams work, say PB+ for exhaust or intake and standard P's for the opposite.
 
Reply
Old Jan 30, 2026 | 08:28 AM
  #2  
Architect's Avatar
Architect
Seasoned HDF Member
15 Year Member
Joined: Apr 2010
Posts: 9,503
Likes: 7,807
From: Long Island, New York
Default

Anything can work if you are smart enough to figure out duration and clearances so you don't smack a piston with a valve. Real rocket science stuff, you need to talk to someone that does custom grinds for cams, good luck.
 
Reply
Old Jan 30, 2026 | 10:50 AM
  #3  
Ron Pinette's Avatar
Ron Pinette
Thread Starter
|
Intermediate
5 Year Member
Liked
Joined: Jul 2019
Posts: 38
Likes: 6
From: Patten, Maine
Default

Thanks, I was just wondering if were an old ironhead trick.
 
Reply
Old Jan 30, 2026 | 01:03 PM
  #4  
Racepres's Avatar
Racepres
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,565
Likes: 3,318
From: Cental, MI
Default

Certainly it will Work, if Clearances are Checked ..as Architect says..
I can tell you that My Bone Stock Ironhead was Good for 12.9 at at 101MPH in the Quarter...Using good ole P Cams...


 

Last edited by Racepres; Jan 30, 2026 at 01:04 PM.
Reply
Old Jan 31, 2026 | 09:22 AM
  #5  
Joe12RK's Avatar
Joe12RK
Seasoned HDF Member
10 Year Member
Loved
Community Favorite
Top Answer: 1
Joined: Jun 2012
Posts: 6,133
Likes: 2,528
From: CT/FL
Default

For automotive cams, increased exhaust duration was a crutch for poor exhaust ports. Not a problem that needs to be solved here.
 
Reply
Old Feb 2, 2026 | 07:15 AM
  #6  
Racepres's Avatar
Racepres
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,565
Likes: 3,318
From: Cental, MI
Default

Originally Posted by Joe12RK
For automotive cams, increased exhaust duration was a crutch for poor exhaust ports. Not a problem that needs to be solved here.
But.. Harleys, have notoriously Poor Port design and Flow characteristics.
You just explained Why, the AB cam can wake Up a Shovelhead...Mine anyway!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
junglejoe
Engine Mechanical Topics
9
Dec 19, 2014 06:27 AM
jlb0038
Multi-Fit Parts and Accessories
0
Jul 6, 2011 08:38 AM
jlb0038
Motorcycle Parts For Sale-Misc. Parts
0
Jul 3, 2010 02:55 PM
tgaetto
Want To Buy Motorcycles/Parts/Accessories
0
Dec 1, 2008 02:39 PM
darkdyna06
Dyna Glide Models
0
Feb 24, 2008 11:35 PM




All times are GMT -5. The time now is 02:54 AM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE