Worth the money, Heads and big bore ?
HDF Community Team
Joined: Jun 2006
Posts: 12,773
Likes: 2,603
From: san antonio
My buddy has me talked into going with a bigger cam and at least 10-1 cr. Going to talk the man saturday to get some prices. I guess he buys alot of 110 and 103 se heads and reworks and flows them, Buddy says he can get them for a pretty good price should be able to make up the differance in the price of the new cam. Couple of questions, Does se make piston that can be used in a 98" ? Any suggestions on what cam to use. My buddy said I should go with atleast a 570 lift and something that closes between 45 to 48. What do you all think?
No, SE does not make pistons for the 3.932" (98") bore. The SE 110 heads have oval chambers, not the bathtub chambers of the OEM TC88/96 heads. Be careful to match the pistons to whatever head you decide to use.
Suggest selecting a cam first and building around the cam.
Tourer
Joined: Oct 2010
Posts: 436
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From: Pittsburgh PA
Your understanding is correct; however, the OP says he is porting the heads, so it doesn't make any difference which casting he starts with. After porting, both castings will be the same. the only advantage to swap would be the lift capability of the later heads which can be addressed by the head porter on the early castings.
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Tourer
Joined: Sep 2007
Posts: 383
Likes: 1
no djl, doing 98 cubes. More than likely, I will be having my heads done to fit what ever cam I decide to use. He does have some se 103" heads that he has ported, polished and flowed to match differant cams, I believe they are T-man cams, but I don't have the specific numbers. I will find out more on saturday. Just wanting some cam suggestions. Just looking around and 98" pistons seem to be priced quite abit more than 95". Bye the way thanks for all the advice.
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
No, Harley does offer a 98" piston.
We do.
We have Wiseco manufacture a piston/gasket kit for us, for 88-98"", and another for 96-107".
You bud is thinking about a 110" head on your 98"er??
Not a good idea, as it'll slurp all the low end torque off that build.
Your OEM casting, re-worked would be much better.
Scott
We do.
We have Wiseco manufacture a piston/gasket kit for us, for 88-98"", and another for 96-107".
You bud is thinking about a 110" head on your 98"er??
Not a good idea, as it'll slurp all the low end torque off that build.
Your OEM casting, re-worked would be much better.
Scott
HDF Community Team
Joined: Jun 2006
Posts: 12,773
Likes: 2,603
From: san antonio
no djl, doing 98 cubes. More than likely, I will be having my heads done to fit what ever cam I decide to use. He does have some se 103" heads that he has ported, polished and flowed to match differant cams, I believe they are T-man cams, but I don't have the specific numbers. I will find out more on saturday. Just wanting some cam suggestions. Just looking around and 98" pistons seem to be priced quite abit more than 95". Bye the way thanks for all the advice.
You will need to deck the heads to 80cc chambers to hit 10:1 static if that is your goal. Cams that would work would have a 40*-42* intake close. Several of TMans cams close at 41*.
Last edited by djl; Jan 27, 2012 at 06:01 PM.
HDF Community Team
Joined: Jun 2006
Posts: 12,773
Likes: 2,603
From: san antonio
no djl, doing 98 cubes. More than likely, I will be having my heads done to fit what ever cam I decide to use. He does have some se 103" heads that he has ported, polished and flowed to match differant cams, I believe they are T-man cams, but I don't have the specific numbers. I will find out more on saturday. Just wanting some cam suggestions. Just looking around and 98" pistons seem to be priced quite abit more than 95". Bye the way thanks for all the advice.
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HDF Community Team
Joined: Jun 2006
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From: san antonio
Cruiser
Joined: May 2011
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From: Cape Coral, Fl
Go with a total kit from Fuel Moto or from Hillside. Both of them know what they are talking about and you won't be disapointed. Prices are right as well. Give one of them a call. Both are sponsors on this forum and won't steer you wrong.