Reply to thread

Message: [QUOTE="elf, post: 740537, member: 43050"] The flat spot on the exaust side is normal, the holes help cool and lubricate the exaust bridge. I cant remember if the stock pistons have holes its been years since I have used a stock piston. If you have a stock piston with no holes you can drill two holes the same size as they were in the vertex piston. use some fine sandpaper around the holes to make sure there are no sharp edges protruding. [/QUOTE]