Shaved head question

[Geoff]

OK, I just got my Noss Head and am going to put it on tomorrow. I bought my bike used last spring and supposebly my the head was shaved and it has a "race port". I know that depending what kind of port work has been performed it can lower your compression. The one time I checked my compression it wasn't high at all(115ish). I know it's ported, my buddie has a shee thats identical in mods and I'll spank him. So is there anyway to mic the head and find out if anything has been done to it?

 

The bike runs great, once i get fuel in the carbs...1 maybe 2 kicks.

 

 

One more question, anyone know a round about figure on how much it costs to put a 4mil in an OEM motor. If I were to do a topend I've contemplated doing this but have no idea on what it would entail.....If they say $500 it will probably $1000 by the time your done, just like old cars.

 

Thanks guys

Geoff

[Geoff]

Come on guys, help a brotha out :biggrin: . I got my head off now and the pistons aren't concaved which is good, theres no pitting in the head either.

 

I was curious though, I can make out a number on one of them and it's 89671 if I'm correct. Anyone know what it means? I bought this bike used last winter/spring and this is the first time I've pulled the head(putting on a Noss Head). I checked the compression when I first got it and checked it again today and it's the same, so I would take it as a good sign that the topend is not worn out.

 

Well looks like I'll get back to work on it.

[Bansh-eman]

OK, I just got my Noss Head and am going to put it on tomorrow. I bought my bike used last spring and supposebly my the head was shaved and it has a "race port". I know that depending what kind of port work has been performed it can lower your compression. The one time I checked my compression it wasn't high at all(115ish). I know it's ported, my buddie has a shee thats identical in mods and I'll spank him. So is there anyway to mic the head and find out if anything has been done to it?

 

The bike runs great, once i get fuel in the carbs...1 maybe 2 kicks.

One more question, anyone know a round about figure on how much it costs to put a 4mil in an OEM motor. If I were to do a topend I've contemplated doing this but have no idea on what it would entail.....If they say $500 it will probably $1000 by the time your done, just like old cars.

 

Thanks guys

Geoff

no help on the head... as far as the putting in a 4 mil you can buy EVERY part gaskets pistons crank head and domes ntake vf3 reeds and carbs and clucth for about 2500-3000 remember you dont want to just throw a big crank and pistions in there and thing your good you got to have the carbs to support the motor and porting done on the transfer ports ... your head has to be cut if running stock head ... if running cool head your domes have to be cut... your going to need new clucth to hold the new power.. theres alot more to it then just the crank and pistons...

[Geoff]

Yeah, theres always all the "little" stuff that gets yuh. I figured it would be about half that since your not buying new cylinders, but no one told me that just a number I had in my head.

 

Thanks for the input