strokersteve Posted March 23, 2012 Report Share Posted March 23, 2012 hey guys, just picked up my first banshee and i am amazed with the power. the guy i got it from says that it has a 403 big bore/ stroker. the jugs have all the factory casting numbers on it, but it looks like it has C T engraved in the side of the jugs undere the black powder coat. is there any way i can identify this with out tearing the engine down? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted March 23, 2012 Report Share Posted March 23, 2012 Welcome to BansheeHQ! It's really hard to say what the motor could be. I may be what he says, then again, it may not be. The best way to know for sure is to tear it down. CT probably means CT Racing. They're not really known for their Banshee performance stuff. If you need any parts, be sure to check out BansheeHQ's sponsors. They have everything you could ever need. Quote Link to comment Share on other sites More sharing options...
cline Posted March 23, 2012 Report Share Posted March 23, 2012 I'm not a professional by any means but in my opinion, the only way you are going to verify anything, is to see it your self. I doubt the markings you speak of on the cylinder actually identify any inside motor work but who knows. If you really want to help the wise men out in here post a pic of what you are talking about. The guys told me in here, "if it aint broke don't fix it ." So if you like the way it rides, and it aint broke, I personally wouldn't pull it apart just to see whats in it unless you're hell bent on knowing. Either way you chose to go, have fun with the banshee. Quote Link to comment Share on other sites More sharing options...
Overdose Posted March 23, 2012 Report Share Posted March 23, 2012 Welcome to the madness! I agree with cline don't tear it down if it runs fine just enjoy it. Quote Link to comment Share on other sites More sharing options...
ticktock Posted March 23, 2012 Report Share Posted March 23, 2012 Welcome to BHQ! I wouldn't take it apart until your compression is in later service limits. You can DL a service manual for free from the link below! Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 24, 2012 Author Report Share Posted March 24, 2012 well i took the head off because the head gasket was leaking and presureizing the coolant. it has a solid copper head gasket with 69mm pistons. it is the stock 54mm stroke. i see it has 2 base gaskets under the jugs, and in the box of stuff that came with the bike there is a aluminum spacer. should that spacer be in there? Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted March 24, 2012 Report Share Posted March 24, 2012 well i took the head off because the head gasket was leaking and presureizing the coolant. it has a solid copper head gasket with 69mm pistons. it is the stock 54mm stroke. i see it has 2 base gaskets under the jugs, and in the box of stuff that came with the bike there is a aluminum spacer. should that spacer be in there? That comes with a Four mil crank. I was dumb and did it that way. Are you sure is a stock stroke? Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 24, 2012 Author Report Share Posted March 24, 2012 well i used my digital calipers and measured 54 mm from top of jug to edge of piston while at bdc Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted March 24, 2012 Report Share Posted March 24, 2012 Now look at the other piston at TDC, does it stick out 2mm, and is your head gasket 2mm thick? Quote Link to comment Share on other sites More sharing options...
Bad one ton Posted March 24, 2012 Report Share Posted March 24, 2012 Welcome to BHQ! As far as your engine definatlly see for yourself what it is. I personally just got burned on my first banshee buy and am currently rebuilding it. Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 24, 2012 Author Report Share Posted March 24, 2012 my head gasket is .80mm thick and the piston sticks out about that much Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 24, 2012 Author Report Share Posted March 24, 2012 any idea what i should torque my head to with the copper gasket? and should i put any sealer on the copper first? or install it dry? Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 25, 2012 Author Report Share Posted March 25, 2012 anyone seen a head gasket like that? Quote Link to comment Share on other sites More sharing options...
360CICJ Posted March 26, 2012 Report Share Posted March 26, 2012 If that gasket was leaking and causing pressure to go into your overflow I would replace it, looks like you've got yourself a 4 mil! You could get a coolhead from one of the sponsors that has domes cut for the added stroke, that way you wouldn't need that copper gasket, instead it would use an oring Quote Link to comment Share on other sites More sharing options...
strokersteve Posted March 26, 2012 Author Report Share Posted March 26, 2012 got some more info yesterday. apparently its not stroked, it has the hotrod oem crank in it. with these jugs on it http://bansheehq.com/forums/index.php?showtopic=148026&st=0&p=1277532&fromsearch=1entry1277532 Quote Link to comment Share on other sites More sharing options...
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