[mSleDnEcKn]

[?]
[attachment=52319]
[attachment=52320]
[attachment=52321]

 

[bulldog_shotgun]

looks like a SPI moly coated piston to me.

 

[mSleDnEcKn]

ok, thanks.

 

[slowmach1]

thats what i thought

 

[Revagade800x]

yes it looks like SPI its popular among with Cudney pistons as well, but hey that 3rd picture looks like it got pierced or something? or thats normal shaping ?

 

[bulldog_shotgun]

looks like the exhaust arrow to me.

 

[ULTRAMANIAC]

They are definately moly coated I just put the same ones in my Ultra

 

[JONESIE]

spi same style i just put in my switchback and buddies ultra

cheers

 

[mackinsaw]

Those are deffinently spi's. I have 2 of em sitting in my basement right now I plan on putting in tomorrow. I can take a pic of mine if you want but they are IDENTICAL. Only thing different is I have to tiny holes drilled under the rings to lubricate the exaust something or other. Those are expensive to, did you just find em laying around or what?

 

[STEVE650]

SPI, bought the for the rebuilt thisr year.