what CC size is a .40 overbore?

[NTPRacing#19]

i gotta new piston 11-1 and i have to get teh cylender overbored .40 and a clearance of .0020 its a 86mm piston if that helps at all im just wondering if its a true 400 or 416

[Chef]

You would call it a 406.

[stonerider250x]

it might but i seriously doubt it:( but it should be around 412:blah:

[BigThumper33]

Chef is right...

[Chanman420q]

.60 is like 411 or 412

406 ;)

[NTPRacing#19]

thanks guys i was just wondering

Originally posted by stonerider250x
it might but i seriously doubt it:( but it should be around 412:blah:
standard bore=396
.20 over bore=401
.40 over bore=406
.60 over bore=411
.80 over bore=416:)

[JOEX]

Technically you are ALL wrong:D

Cylinder boring is measured in thousandths of an inch......
.020
.040
.060
.080

Just thought i'd clarify that minor and common error:D

Joe

Originally posted by JOEX
Technically you are ALL wrong:D

Cylinder boring is measured in thousandths of an inch......
.020
.040
.060
.080

Just thought i'd clarify that minor and common error:D

Joe grr...you alwyas gotta get technical:mad: :macho

[nakomis0]

Whats an 89.50?

[Chef]

I think its just about a perfect 440-441?

[NTPRacing#19]

um actaully its .004 to be precise