[akawilliam]

My cylender is at the shop just got hone but for extra 40 they will bore it. Will i be able to tell much between standered bore highcompression and a .40 high compression bore?

 

[warwgn]

yes. But if your gonna bore it get the piston you want first and have them bore the cyl to the piston. Go find a nice 102mm piston and when your done you'll have a 686!!

 

[ironraptor04]

i thought the 100.5 was .40 over made it the 686 wesaco that was

 

[warwgn]

nope a 686 uses a 102mm

 

[660racer]

if you got the 100.5 yor cylinder would be 666cc

 

[hugozoon]

.40 over is a 101 bore 673cc

 

[ironraptor04]

as long as you are in the engine get a 4mm stroker and a 102 piston make it a 720

 

[akawilliam]

How far can the stock cylender be bored to?

 

[Mad Dog]

How far can the stock cylender be bored to?

102mm with the stock sleeve, 105.5 or 106mm with a new sleeve and case work.