RZBansheeMan Posted February 3, 2008 Report Share Posted February 3, 2008 I thought that on a cylinder with a bridged exhaust port, you would want to drill 2 holes on the exhaust side of the piston in line with the bridge for added lubrication, along with relieving the bridge. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted February 3, 2008 Report Share Posted February 3, 2008 I thought that on a cylinder with a bridged exhaust port, you would want to drill 2 holes on the exhaust side of the piston in line with the bridge for added lubrication, along with relieving the bridge. Yea that is the way to go. I am sure it isnt a problem if you have a builder that knows what he is doing. I think it has to be relieved because it gets hot and expands making the piston clearance a problem. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted February 3, 2008 Report Share Posted February 3, 2008 What about BIG Bore sleeves? That is the way I went. I bought a set of Drag Ported Patriot Racing 4 mill cylinders that had a cracked sleeve for around 100 bucks. I sent them back to Patriot Racing to be resleeved with big bore sleeves. First bore is 66mm and final bore is 68mm. I just run blaster pistons on my 4 mill long rod crank. I wouldnt have spent the 300-400 for a port job then another 400 for the relseeve job but since I got the cylinders (pretty much just a port job) for cheap I thought it was worth it. I got around 500 in the cylinders. I saw a while back somebody on here selling a set of Drag Ported K&T stock cylinders that were on there last bore. If you can get them for cheap enough it might be worth haveing them resleeved with big bore sleeves. josh Quote Link to comment Share on other sites More sharing options...
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