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Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Engine - all topics related to the Motor » A few question for upgrading the topend on blast to xb parts « Previous Next »

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Prichmon
Posted on Friday, December 22, 2023 - 07:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am starting to look for my nephew's blast to get more power.

As I recall an ab9 piston, jug and front cylinder is the best course.

Can I use xb12 head with the xb9 piston and jug?

Would an 04+ harley 1200r front head work as well or only buell parts?

Are cams from an xb9 a good choice as well? or an xb12? I know I will only use 2.

Can anyone suggest jetting?


Thanks
RR
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Prichmon
Posted on Friday, December 29, 2023 - 08:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

anybody????
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Titusand
Posted on Monday, March 04, 2024 - 02:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There are 100's of posts on this forum about that topic, so just do some searching. I am amazed (and grateful) this website still exists and it's still has posts from 20 years ago. My Blast will be on the road in 2024!
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Cvc
Posted on Thursday, May 16, 2024 - 07:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If Prichmon check Hammer Performance they have head porting and a cylinder kit as well as cam advice.
To try to go low budget just get XB9 valve springs a Weisco high compression piston for standard bore and modify the ignition to make 7500 rpm.
The ignition mods are listed on Badweb
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