You mean the piston number or their phone number?Here's their address and number Venolia
The piston quality was excellent,they'll build anything ya want, any ring size,any pin location.I still have the combustion chamber plaster mold I made of an unmilled 302 GMC head with Chevy small block V-8 1.94 and 1.60 valves.Venolia should also have a record of the piston they built for me.If you need it,give me an email.
Another note,the 302 connecting rod is kinda short,the piston pin is fairly low on the piston.A half inch longer rod would add more torque and locate the pin into a more favorable location.


70 Triumph 650 cc ECTA current record holder