SE heads
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5th Gear
Joined: Aug 2007
Posts: 9
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SE heads
Need to ask the question about which heads to use on a build. I have a 95"with 034 Head Quarters cam, currently stock heads.I want to bump the compression and decided to either use SE performance heads with the 72 cc or have my stock heads ported and cc'd and decked to 76 cc. I would like to get theccp to200 or close. I think this is about 10-1 with a .030 head gasket. I haveread in otherthreads that valve to piston contact is likely if I use either of these lower cc heads. I talked with thelocal Harley dealer and they assured me that no valve relive work on the piston would be needed if I used the SE performance headswith a bolt in cam, which the 034 is. They said they install these heads every day and never have a problem. I do have a hard time beliving HD would sell something that would not fit it's intended use. Has anyone else used the SE head andhad any issues with valve and piston contact? Thanks for your help.
Seasoned HDF Member
Joined: Nov 2004
Posts: 8,129
Likes: 1,981
From: Ottawa, CANADA
RE: SE heads
I'd get my stock heads done up by HQ if I were you. Call them and talk to Doug. Tell him what you're going for and he'll advise you. I got my heads done by Doug at Head Quarters and have HQ-0039G cams (.580 intake lift/.530" exhaust lift), with stock displacement and compression, and didn't need any relief on the pistons. Of course the stock CR is only about 9:1, that's why I say to call Doug at HQ.
I'm getting the 95" done this winter, and am gettting the jugs done by HQ along with a set of matched CP pistons from them. I'll be going with 10:1 compression. I called and talked to Doug and he gave me the part numbers I needed based on the work they'd done for me last year (he looked up the job number) and what I'm going for this winter, so I'm guaranteed to have everything be compatible.
Cheers!
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I'm getting the 95" done this winter, and am gettting the jugs done by HQ along with a set of matched CP pistons from them. I'll be going with 10:1 compression. I called and talked to Doug and he gave me the part numbers I needed based on the work they'd done for me last year (he looked up the job number) and what I'm going for this winter, so I'm guaranteed to have everything be compatible.
Cheers!
[sm=icon_rock.gif][sm=icon_rock.gif][sm=icon_rock.gif]
Seasoned HDF Member
Joined: Nov 2004
Posts: 8,129
Likes: 1,981
From: Ottawa, CANADA
RE: SE heads
ORIGINAL: Tn.Heritage
Dang Clammy, your putting some more coal to the train this winter, makes more steam.
Dang Clammy, your putting some more coal to the train this winter, makes more steam.
Cheers!
[sm=icon_rock.gif][sm=icon_rock.gif][sm=icon_rock.gif]
Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
Likes: 46
From: Roswell, GA
RE: SE heads
Harleyhog: Since you want to use Doug's cams in your build, I'd call him and ask him about what you are considering.
Most street port, thin head gasket, shaved head builds are chasing compression without creating air flow (like Doug's heads do) to get more a/f into the combustion chamber and getting rid of the heat. Consequently, many such builds are plagued with detonation from the retained heat self-igniting the unburned combustible gasses.
I applaud your initiative and inventiveness; hope you can, in fact, build a better mousetrap.
Most street port, thin head gasket, shaved head builds are chasing compression without creating air flow (like Doug's heads do) to get more a/f into the combustion chamber and getting rid of the heat. Consequently, many such builds are plagued with detonation from the retained heat self-igniting the unburned combustible gasses.
I applaud your initiative and inventiveness; hope you can, in fact, build a better mousetrap.
Road Warrior
Joined: Dec 2006
Posts: 1,530
Likes: 0
From: Diamond Bar, California
RE: SE heads
The best thing to do is have your OE heads done, you will get better valve guides and a alaround better head job.
You would be best served by going to a popup piston with a 4 cc dome 10 to 1or a 9 cc dome for 10.5 to 1 comp.thatis with theheads at 82ccs, like mine. these are spun dropped and use the SE OE big bore gasket. setting quench at .30 thou.
you will not be disapointed, you can go to the Firestorm cams and realy kick some ***!
You would be best served by going to a popup piston with a 4 cc dome 10 to 1or a 9 cc dome for 10.5 to 1 comp.thatis with theheads at 82ccs, like mine. these are spun dropped and use the SE OE big bore gasket. setting quench at .30 thou.
you will not be disapointed, you can go to the Firestorm cams and realy kick some ***!
Road Master
Joined: May 2007
Posts: 851
Likes: 5
From: Mitchellville, Ia.
RE: SE heads
For the same money you can get cnc ported heads and a complete integrated kit to fit the kind of power your looking for. Call Art at R&R Cycle and get the low down. www.rrcycles.com
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Road Warrior
Joined: May 2006
Posts: 1,479
Likes: 4
From: SoCal
RE: SE heads
Having your stock heads ported rather than porting the SE or S&S heads means leaving 8 - 12 hp on the table EVERYTIME. If you have the dough, buy the SE Hi-Per heads from Zanotti's and have 'em hand ported.
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Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
RE: SE heads
ORIGINAL: Firetender
Having your stock heads ported rather than porting the SE or S&S heads means leaving 8 - 12 hp on the table EVERYTIME.
Having your stock heads ported rather than porting the SE or S&S heads means leaving 8 - 12 hp on the table EVERYTIME.
Seasoned HDF Member
Joined: Nov 2004
Posts: 8,129
Likes: 1,981
From: Ottawa, CANADA
RE: SE heads
ORIGINAL: Firetender
Having your stock heads ported rather than porting the SE or S&S heads means leaving 8 - 12 hp on the table EVERYTIME. If you have the dough, buy the SE Hi-Per heads from Zanotti's and have 'em hand ported.
Having your stock heads ported rather than porting the SE or S&S heads means leaving 8 - 12 hp on the table EVERYTIME. If you have the dough, buy the SE Hi-Per heads from Zanotti's and have 'em hand ported.
Cheers!
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