piston ??????

D

dave269

Member
I work at a small engine shop and a customer ordered a 5hp piston pt# 793214 for a STD bore flathead, the piston in the box seems to be a raptor motorsport piston that has a Pt#555240 on the top of the piston, Is this a chromed piston or not ????
 
I have a chrome 10 over piston it is marked 555267 and a 10 over steel bore piston it is marked 555241 I would assume the piston you have is for a steel bore. A chromed piston will have shine to it and a non chromed will have a dawl finish
 
One way to tell if an aluminum piston has a chromed coating is to use a bit of polishing compound on a white cloth and rub the piston. If you polish an aluminum surface the rag will turn black as it polishes if it just cleans it and doesn't cause much blackness then there is a surface coating. The chromed coating of briggs piston isn't shiny like you would think chrome would look like.
 
You must log in or register to reply here.
Back
Top