bansheecaptain Posted February 1, 2004 Report Share Posted February 1, 2004 I just got my hands on a stock head and my buddy that has a shee told me to shave the head to 30 thousands , is that right. plus i have a degree key as well but not installed yet . I have no engine mods done yet either, just stock exept for fmf gold series pipes and k&n filter , so i'm just woundering if i risk blowin the engine. so if I get this shaved what should i do to my shee so she wont go boom . thank you for the help Quote Link to comment Share on other sites More sharing options...
banshee04le Posted February 1, 2004 Report Share Posted February 1, 2004 Shaving or milling .030 off of the head is a good mod. If your sure the head and cylinders have never been decked then you will not have any problems taking .030 off. It is a good idea to check your squish clearance before running the engine though. This can be checked with a piece of led/tin solder inserted into the spark plug hole. Slide it in until it is against the cylinder wall and then turn the kicker by hand and let the piston smash the solder. Remove and mic the solder. It should not be thinner than .022, I've heard others say .026 is minimum. Fixitrod or boonman could tell you for sure. What I noticed most with this mod was the ability to pull a lower gear i.e you don't have to downshift as often to find the powerband. Quote Link to comment Share on other sites More sharing options...
bansheecaptain Posted February 2, 2004 Author Report Share Posted February 2, 2004 Thanks for the help . for sure i'll have to check that before I drive the thing Quote Link to comment Share on other sites More sharing options...
yamaha350 Posted February 2, 2004 Report Share Posted February 2, 2004 go .080 get the most you can out of it. i just sold my stock head a while back and it was shaved .090 Quote Link to comment Share on other sites More sharing options...
banshee04le Posted February 2, 2004 Report Share Posted February 2, 2004 .080 - .090 Are you sure about that yamaha350? I thought I heard that .035 was about the max. you should remove . Quote Link to comment Share on other sites More sharing options...
Justintoxicated Posted February 2, 2004 Report Share Posted February 2, 2004 Or you can save up and get a nice head like the noss head, A little mroe $$ but well worth it IMO. Especialy if you plan on getting more engine work in the future. Although milling it is definately more bang for the $. go .3 over, at sea level otherwise you might have to run race gas. Quote Link to comment Share on other sites More sharing options...
boonman Posted February 2, 2004 Report Share Posted February 2, 2004 DO NOT go more than .030" with your head. Very bad things will happen. The little detonation gremlins will haunt you untill catastrophic failure happens. With that much, it will happen in a very short time. Your squish if you didn't get the head re-chambered would be nothing. You would have major problems. With .030" off the head gasket surface, you will experience "0" problems. Only benefits, all the way across the board. With anything over .030", you need to have the chambers re-cut to correct the squish.... Quote Link to comment Share on other sites More sharing options...
bansheecaptain Posted February 3, 2004 Author Report Share Posted February 3, 2004 thaqnk you for all your input , and ya .030 sounds right I have a stock motor so I dont want to go over board so .030 sounds right , thank you guys you helped alot . and for sure i'll go with a noss head when i get some money in the walet . Quote Link to comment Share on other sites More sharing options...
Ducman Posted February 3, 2004 Report Share Posted February 3, 2004 Like boonman said, if you go more than .030 you will need to have the squshband modified as well for piston clearance and for correct combustion geometry. Not very mny shops are capable of performing this. Also at more than .030 you will need to possibly run a mix of race and pump fuel or straight race fuel so you don't have a detonation problem. If you go over .030 and don't have your crank trued and welded you will trash your bottom end a lot faster too. It would be a good idea to check your compression after installing the head milled as well as checking your squish clearance. Quote Link to comment Share on other sites More sharing options...
yamaha350 Posted February 3, 2004 Report Share Posted February 3, 2004 i ran the 090 head for over a year with no problems. Quote Link to comment Share on other sites More sharing options...
boonman Posted February 3, 2004 Report Share Posted February 3, 2004 i ran the 090 head for over a year with no problems. You most certainly did NOT run a stock chambered head that was .090" shaved down with stock crowned pistons and stock base gaskets. I could see if you double base gasketed it or something like that. But just pulling off the head, and shaving it .090", and putting it back on, you would have caused catastrophic engine failure. Without a doubt. No way in la-la land or wherever you spend your days did you run that head..... Maybe you dreamed this up when you were in the lovely confines of the "I love me" jacket?? How many stock heads have yo looked at? You are spewing bull shit out of your sewer at this present time.... Quote Link to comment Share on other sites More sharing options...
sredish Posted February 3, 2004 Report Share Posted February 3, 2004 i ran the 090 head for over a year with no problems. Holy squish chamber batman!! Quote Link to comment Share on other sites More sharing options...
boonman Posted February 3, 2004 Report Share Posted February 3, 2004 Holy squish chamber batman!! Or lack thereof!!!!! Quote Link to comment Share on other sites More sharing options...
yamaha350 Posted February 4, 2004 Report Share Posted February 4, 2004 i am not stupid when it comes to banshees. i had no problems running the head. i measured the head compared it to a stock head. and then had bill from shortys racing measure it. i ran it on a drag ported .40 350. NEVER HAD A PROBLEM. also running weisco pistons.bike ran good while i had it on. most of my friends thant have stock heads run them .085 Quote Link to comment Share on other sites More sharing options...
banshee04le Posted February 7, 2004 Report Share Posted February 7, 2004 Someone help! I'm confused . Quote Link to comment Share on other sites More sharing options...
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