Super Jet Wiseco M-series Pistons question

[frogsmasha]

I just received my .5 bored out sleeves and my new set of Wiseco M Series Pistons. I'm getting ready to install them when I find the directions that came with the Wiseco Pistons said that I need to drill some tiny holes into the side of the piston if the cylinder has an exhaust bridge.

I don't know what an exhaust bridge is:scratchchin:
Below is exactly what the directions say that came with the Wiseco Pistons.

Lubrication holes:
If the cylinder has an exhaust bridge, the piston should contain lubrication holes on the skirt where it contacts the exhaust bridge. If the piston does not have the lubrication holes on the skirt, follow these steps to drill the lubrication holes

I cant look at my old pistons as they have been discarded. I want to proceed but I want to make sure I am 100% sure on every little detail.

Thanks for reading.

-Dave

 

[frogsmasha]

I just found the manual online for the Wiseco Pistons. http://www.wiseco.com/PDFs/Manuals/MSeries.pdf
Maybe I'm losing it but I don't think they are required as its hitting the sleeve and actually has no exhaust.

 

[SUPERTUNE]

No drilling needed for your cylinder.
Wiseco notes are for universal applications.
Now if you have a early Billet ABLE cylinder with the bridged exhaust, then the piston drilling would be required.
Be sure to set piston clearance looser than recommended... unless COMPLETELY STOCK, otherwise no less than .0055-.006 for any engines that are hot rodded. (pipe, head, aftermarket F/A etc.)

 

[frogsmasha]

Thanks a ton, I appreciate it

-Dave