jamie Member Joined Feb 14, 2004 Messages 194 Age 54 Location Ottawa,Ontario Oct 15, 2006 #21 85-87 hp on all 540 to my knowledge
V Vmax540 VIP Member Joined Jan 28, 2004 Messages 1,288 Location Clarion Pa. Website vintagevmax.com Oct 16, 2006 #22 Visit http://www.vintagevmax.com/ and go to ARTICLES for info on the 540's !
SRXfromHELL New member Joined Feb 5, 2005 Messages 107 Age 60 Location Morris ,Pa. Oct 17, 2006 #23 77srx444 I also run 78-80 68.5 mm pistons in my 81 , but i only come up with 471.7cc you need 70.5 mm bore with 64 mm stoke to get to 499.7cc is there a piston out there that I'm not aware of ???
77srx444 I also run 78-80 68.5 mm pistons in my 81 , but i only come up with 471.7cc you need 70.5 mm bore with 64 mm stoke to get to 499.7cc is there a piston out there that I'm not aware of ???