Thread: Aftermarket or standard parts?

I've just received the 525 parts to upgrade my 450, and the piston is in a Wiseco box so I'm wondering whether it's a standard one that's just been put in that box, or an uprated piston.

Markings on it are two numbers on the inlet side of the crown in a dot matrix style: 11302-10 and 8547DA
Also W4121 on the underside of the crown?

Only number that gives a google result for me is 8547DA which appears to be a Wossner forged piston (it's not like the pic on the link):
http://www.niksindustries.com/store/...iston-kit.html

Are these any good? Compared with an OEM piston does this give any change to performance or longevity? Seems to be in very good condition.

Also, the guy included a cam with these bits. It's in a Hotcams box and includes the paperwork specs and instructions. I'm assuming it's a standard cam just using the hotcams box to protect it but there are no markings that I can see on it.

Not sure of the correct way to measure a cam's lift but I've measured the difference between high point and the off lift part of the cam and it seem to be about 9mm on both lobes. The specs say 10.2 and 10.8 for the hotcams one so I'm fairly sure it must be standard, but any other way to tell for sure?

Cheers!

Cam markings are on the very end... in the middle of the waterpump end. A series of numbers. Stock cam is 5521.

Cheers

Bah - tis indeed 5521/590 then 3/3395
Is that standard 450 or 525? Or are they the same?