Man, those are a great series of pics - thanks for sharing those, sparcuser - very cool! Maybe you could provide additional details/pics of the entire bike in a different post? Obviously a car tire chassis . I'm going to guess mid to high 7's in 1/4 mi?
Unusual to see J/GPz cases used for an ultimate build like that, I think mainly because you lose the bottom rear motor mount with the J-cases. It can be done, though, as proven by Steve Rice with his funnybike, back in the day.
Looks like some Falicon knife rods hanging on the crank? And, looks as though the multiplate cam chain is still being used - interesting! The porting on the cylinder head is rather intense - but there's no way around it when trying to generate big HP numbers with normally aspirated motor..
Other details that I see - the gas ports drilled into the circumference of the piston crowns to backload the top compression ring - nice. And check out the top of the cylinder flange - I remember taking a Dremel to my cyl head locating dowels to fit what is now a three quarter moon at the top of the cylinder flange.
All part of the million and one details when building high output race motors (although I took the
easy way out by using turbo power
)
Thanks again for posting those pics - brings back a lot of great memories - greatly appreciate it!
Mike