Could someone post a picture of a 40 pipe  next to a 60 pipe
Maybe have a ruler in the picture
I got mine 2nd hand so I need to find out what I have
thanks
Fred Q

The pipes in the middle  numbers 6 and 7 from the right,  are  a 40 pipe next to a 65 pipes  the number 8 pipe
The 40 pipes  were 1.4 and 1.4 inch diameter at the rear
The 65 pips are 1.5 to 1.6 in diameter at the fat part near the rear

It is hard to tell from a photo,  measure your pipes diameter back at the large part

The pictures  you sent to me  looked like  65 pipes

Randy