just wondering if the stock heads have any more potential than stock? is there room for some porting and polishing or are they already worked to the max from the factory?
At The Back Of The Pack
Arm chair racerAt the back of the pack
just wondering if the stock heads have any more potential than stock? is there room for some porting and polishing or are they already worked to the max from the factory?
1981 Corvette (chevy bright white)
1998 GMC shortbed step side lifted,35's,mickey t's
1995 Monte Carlo (gas mileagle car)
1987 XR100
1989 Polaris Trail Boss 250 (old reliable/faithful)
1984 ATC 110 (Blue)
1985 ATC 350x (DG exhaust)
1986 ATC 250r cleannnnnnnn
2002 polaris scrambler 500HO 4x4 (supertrapp exhaust)
75 jeep cj5 6" lift, 35" procomps, locked up,
77 jeep cj5 3" lift, 34" tsl's
67 jeep comanche(running soon)
I'm like an Original Gangsta...but a post whore instead.
The day begins with 3WW
There is room for improvement!!!
You can have porting done,B Cool head,Wiseco Piston with a ceramic coating.
My old 1985 250R http://www.flickr.com/photos/24898661@N07/show/
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Currently trikeless
At The Back Of The Pack
Arm chair racerAt the back of the pack
b cool head? is that aftermarket im just talking about things to do to the stock head
1981 Corvette (chevy bright white)
1998 GMC shortbed step side lifted,35's,mickey t's
1995 Monte Carlo (gas mileagle car)
1987 XR100
1989 Polaris Trail Boss 250 (old reliable/faithful)
1984 ATC 110 (Blue)
1985 ATC 350x (DG exhaust)
1986 ATC 250r cleannnnnnnn
2002 polaris scrambler 500HO 4x4 (supertrapp exhaust)
75 jeep cj5 6" lift, 35" procomps, locked up,
77 jeep cj5 3" lift, 34" tsl's
67 jeep comanche(running soon)
Power User
Teaching quads a lesson
improvement can be made by shaving the head and using a cr250r head gasket, but now you are taling race gas territory. There really isn't too much you can do to a stock head.
At The Back Of The Pack
Arm chair racerAt the back of the pack
what will using that cr250r head gasket bring my compression to? do you know ? your talkin 106 or 110 right?
1981 Corvette (chevy bright white)
1998 GMC shortbed step side lifted,35's,mickey t's
1995 Monte Carlo (gas mileagle car)
1987 XR100
1989 Polaris Trail Boss 250 (old reliable/faithful)
1984 ATC 110 (Blue)
1985 ATC 350x (DG exhaust)
1986 ATC 250r cleannnnnnnn
2002 polaris scrambler 500HO 4x4 (supertrapp exhaust)
75 jeep cj5 6" lift, 35" procomps, locked up,
77 jeep cj5 3" lift, 34" tsl's
67 jeep comanche(running soon)
Power User
Teaching quads a lesson
I believe its a 89 cr250r gasket, many of the top end and full gaskets sets have an option for a thick trx gasket or thin cr gasket. I know I got a few of them from those gasket sets. With a shaved head and cr gasket, you will be in a compression where race gas is a must. The cost and availabiltiy of gas is the down-side of going hi-compresssion.
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