Is there somewhere where I can find different size Pistons with their measurements??
I know it's a long shot but I'm building a custom engine and I'm sort of new to the custom scene, I have done mods in the past but it's from things already made for the engine.
I'm just looking for a certain size piston.

Stock piston size I'm working with

Piston Diameter: 75mm
Piston Height: 46mm
Compression Height: 22.5mm
Wrist Pin Diameter: 17mm
Wrist Pin Length: 57mm

Or better yet can someone help me with how to search for a specific piston size?

Is there somewhere where I can find different size Pistons with their measurements??
I know it's a long shot but I'm building a custom engine and I'm sort of new to the custom scene, I have done mods in the past but it's from things already made for the engine.
I'm just looking for a certain size piston.

Stock piston size I'm working with

Piston Diameter: 72mm
Piston Height: 46mm
Compression Height: 22.5mm
Wrist Pin Diameter: 17mm
Wrist Pin Length: 57mm

Or better yet can someone help me with how to search for a specific piston size?

You also need to know the measurement from the centre of the wrist pin to the top of the piston

You also need to know the measurement from the centre of the wrist pin to the top of the piston

That's compression height = 22,5mm


As for piston sources, I usually peruse Wisco and JE piston catalogues:
http://www.wiseco.com/Powersports/Pistons.aspx
https://www.jepistons.com/Catalogs/Powersports/Index.aspx

Usually you can find something that's matching. If not, you can always fill out form and get pistons made to your exact specs. I usually go to Wossner or Arias for that. Looks like Honda Helix CN250 pistons match your specs.

http://bradsscooters.com/partsstore/product/cn250-72mm-piston-kit-2/
https://www.partsforscooters.com/180-148-250cc-Piston-Kit-72mm
https://www.amazon.com/Piston-Honda-CN250-Helix-Scooter/dp/B06XQGHFQ7
https://www.ebay.com/itm/HONDA-HELIX-CN250-CH250-SCOOTER-ENGINE-PISTON-RINGS-PIN-SET/372644721467
https://www.ebay.com/c/14031241008

Thanks for the info, yeah it's the motor I'm working with. I will browse through those websites and see what I come up with.
Thanks for the help.

This is very popular engine for buggies and karts since Helix was produced for over 20-years. Typical big-bore kit:

http://www.scootertronics.com/cn250-big-bore-75mm.html

Web Cam has performance grind for it.

It is but nobody offers the BBK it's all out of stock now. Which is why I have to make my own.

Is there somewhere where I can find different size Pistons with their measurements??
I know it's a long shot but I'm building a custom engine and I'm sort of new to the custom scene, I have done mods in the past but it's from things already made for the engine.
I'm just looking for a certain size piston.

Stock piston size I'm working with

Piston Diameter: 75mm
Piston Height: 46mm
Compression Height: 22.5mm
Wrist Pin Diameter: 17mm
Wrist Pin Length: 57mm

Or better yet can someone help me with how to search for a specific piston size?

From those numbers it sounds like a Honda fireblade 954 or 1000, engine. There are +1,+2 mm pistons for those, or you can look at other Honda to match the wrist pin size. Later CBR1000’s use a larger bore, the limits will be determined by the between cylinder thickness & if nikasil the ability to get them replated.

That's pretty damn close! 74.9mm piston 17mm wrist pin, but the clearance was off a little which I can work with. 23.3mm over by .8 which isn't a lot I can get a spacer or see if the shop can help me out with an alternative.