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Author Topic:   pro topline
zeroracing
Member
posted September 26, 2004 07:57 PM
some of the most powerful circle track engines use flat top pistons. why don't you try that?


dirtracer14
Member
posted September 26, 2004 08:40 PM
If i didnt have pop up pitons allready i would have gotton the small chamber pro heads with a flat top. I ended up with the 64 cc head and a popup srp piston with minimal valve clearance and a tad for the plug they fit just fine.


zeroracing
Member
posted September 26, 2004 09:33 PM
Run flat tops and have the heads milled down, angle milled. Cut the chambers done to about 35cc range then the comp will be way up there in the 14 to 1 range.


zeroracing
Member
posted September 27, 2004 10:46 AM
Look on 4m.net for a engine builder named Hendren's Performance or something like that. He is the most knowledgable about angle milling them heads that i know of. Ask him how far you can go with these heads etc, he should give you a good answer and some idea what you do with them.

Probaly cost a couple hundred in the end i imagine.

jammin
Administrator
posted September 27, 2004 02:51 PM
Or Steve Hendren on this site..lol...same guys...

jam

2nd2none
Member
posted September 27, 2004 06:57 PM
My cousin had Hendren's angle mill his Dart heads to 33cc chambers. I believe it was around $1500 for the mill work.


bizkit
Member
posted September 28, 2004 12:35 PM
I think around 43cc is about the max on pro action heads, I have a set of iron eagles at 33cc and there 15:1 with flat tops