| Author | Message | ||
     Dinuns1 |
Hello i just found a screaming deal on set of axtell 3 13-16 big bore cyl with 30degree pistons can some one tell me what heads will work with these and what the hell am i gettin my self in to . | ||
| Texastechx1 |
case boring. a complete disassembly of the motor to have the cases bored out to fit the new bigger jugs/pistons. IIRC the 30* means for stock sportster heads... but don't quote me on that. | ||
| Phelan |
30* squish means you have the heads cut for a 30* squish band, which can be done with almost any head. You'll want to do porting and larger valves on the heads for those pistons though. And you have to vote the cases. | ||
| Texastechx1 |
basically a complete motor rebuild with machine work... but you'll have one fun buell IF you do it right. | ||
| Dinuns1 |
Well i got the cases split right now , i wasnt sure what i had to use for heads i have a set of brand new thunderstorms i may use for the build . thanks what are thuderstorms cut for ? | ||
| Guell |
15* right? | ||
| Texastechx1 |
thunder storms are 15*. but they can be cut for 30*. no problem, since you will have the get some work done on those head to flow enough to handle the extra cc's. stock thunderstorms on a big bore would be one hell of a stump puller! (Message edited by texastechx1 on May 02, 2010) | ||
| Dinuns1 |
sweet ill pull the triggger and buy em tmrw thanks guys | ||
| Pkforbes87 |
off topic a bit.. but I seem to remember something about the Blast's squish not matching up. Like the pistons are 10* and the heads 15*, or vice versa. It doesn't apply to the topic here since no Blast parts will be used, but that just crossed my mind and it's gonna bother me until I can remember what was different about the Blast  EDIT: nevermind, I found it. It was early blasts that had lightning heads (10*) and thunderstorm pistons (15*) The source I'm reading also states that some pre-thunderstorm Buells had 10* squish in the heads, but flat-top pistons. Pardon the interuption, just trying to add to that mental "encyclopedia" of all things Buell. (Message edited by pkforbes87 on May 03, 2010) | ||
| Phelan |
Yeah, the 10* squish in the lightning heads was just to raise the compression to 10:1 with the same flat-top pistons. They used those heads on the Blasts, '96-'98 S1, S3, M2, save the '98 S1 and S3T. The '96-'03 XL1200S Sportsters also used them, but in a dual-plugged form. I had one of those before I got the S2. | ||
| Andymnelson |
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