Originally Posted by djl

You may be familiar with the "Hippo" build but if not it was a bolt together combination of parts that hit the 100/100 mark every time with the right exhaust. This was back in the day, late 90s, early 2000 when those numbers were not as achievable and they are now. The combination was to bore to 95" (98" was years down the road), SE Performance heads out of the box, stock head gasket and S&S 570 cams. With early pistons down in the hole about .005" static CR was a bit above 10; corrected about 9.3/9.4 and CCP about 195psi which was fairly aggressive at the time. Of course hi-flow air filter and the right exhaust completed the package; the 570 is an exhaust sensitive cam. IIRC, Hippo also fly cut the valve reliefs in the flat tops and recommended compression releases.

The build was named after a member of the HTT forum who has long since passed; his forum name was Hippo; I have forgotten his true name. Hippo was the master machinist/builder with Short Block Charlie's in Phoenix. IIRC, Hippo did one of the first 98" builds sometime around 2004; it was quite the talk on HTT at that time; everybody worried about spigot thickness.

I am aware on the Kompressor heads but the OP was hung up on the SE label; just one way to do it.

EDIT: Just thought I would add that the early SE Performance heads flow as well as the '06 castings. I recall seeing a thread wherein WFO Larry confirmed flow. TC bathtub chambers and EFO ports and apparently there was enough metal to do almost anything a porter would want to do with those heads as well.

Originally Posted by 60Gunner

Curious if you remember the exhaust in that hippo build. Sporties still use the bathtub chambered Buell heads. Did they originate there or were they used before buell on these SE heads? Sporties started using them in 04 on the 1200s but buells before that. Not sure when tho.