Can anyone Name these Pistons and bore Please.......

[nosbanshee4u]

I was wondering what it means when the top of the Piston says. Bore, size, Brand etc. .. .. . ..thanks

 

A78F2

1.00mm

513P4

CD

 

Then an arrow towards the exhaust.

 

 

I was going to put a new top end in my 2000 banshee thinking that it was all stock so I bought a stock bore weisco top end kit for it. But the pistons seem loose in there and now I am thinking that it must be overbore cylinders with that above Piston # in there.

 

Does anybody know where to get rings for these pistons.????

 

Thanks a lot, Mike

[bkabina]

513p4 is a wiseco part number.The pistons you have now are .040 over.On the bottom side of the piston on the area the pin slides through there should be a little W with a circle around it.That is if its actually a wiseco piston.Should be able to get rings for wiseco pistons at any shop.

[9603banshee]

513p4 is a wiseco part number.The pistons you have now are .040 over.On the bottom side of the piston on the area the pin slides through there should be a little W with a circle around it.That is if its actually a wiseco piston.Should be able to get rings for wiseco pistons at any shop.

yup, he's exactly right.....513 series Wiseco Pistons and they're 0.40 over stock putting them at 65mm.......stock comes at 64mm then 0.10 over is 64.25.....0.20 over is 64.50......0.30 over is 64.75.......0.40 over would be 65mm (MAKEING THEM 1.00MM OVER STOCK) and so on.....call John at Sandtoyz Unlimited for any wiseco piston parts at 1-818-500-SAND.....