b40rt Posted January 20, 2010 Report Share Posted January 20, 2010 Saw this on e-bay http://cgi.ebay.co.uk:80/ws/eBayISAPI.dll?...ME:B:SS:GB:1123 Says that the 240 & 320 are the same barrel but bored out, is this correct ? Are the heads completely different or modified to suit ? Also how many rings does a 320 (280) piston have ? Thanks in advance Ross Quote Link to comment Share on other sites More sharing options...
twinshock giles Posted January 21, 2010 Report Share Posted January 21, 2010 The 280 is a twin ring piston, sorry can't help about the head though. There doesn't look a lot left on the barrel of my 280 so they may just be a well bored 240... Martin should know. Giles Quote Link to comment Share on other sites More sharing options...
b40rt Posted January 21, 2010 Author Report Share Posted January 21, 2010 Thanks TG Quote Link to comment Share on other sites More sharing options...
martinm Posted January 24, 2010 Report Share Posted January 24, 2010 Yes, you can bore out a 240 barrel to take a 280 piston. The 240 cylinder head will fit onto a 280 barrel but the squish areas are different. Cheers Martin Quote Link to comment Share on other sites More sharing options...
malcra Posted January 24, 2010 Report Share Posted January 24, 2010 (hmm thought i recognised that barrel, the writing on the piece of masking tape is mine ...) same barrel, if its a 280 barrel you want, then possible can help. 2 rings on a 280 piston. Quote Link to comment Share on other sites More sharing options...
b40rt Posted January 24, 2010 Author Report Share Posted January 24, 2010 Thanks MartinM & malcra, decisions decisions. Quote Link to comment Share on other sites More sharing options...
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