Pistons, who makes a quality piston?

[bonitoman]

I know three companies. Pro, Vertex and wiseco. Who makes a great one for outboards?

 

[Trent]

Re: Pistons, who makes a quality piston?

Wiseco...

 

[rodbolt]

Re: Pistons, who makes a quality piston?

what motor?<br /> forged pistons are nice but have oddities all their own.

 

[bonitoman]

Re: Pistons, who makes a quality piston?

What is a forged piston? Omc or yamaha

 

[rodbolt]

Re: Pistons, who makes a quality piston?

forged and cast are different methods of metal forming. each has its own quirks,strenths and weaknesses.<br />again<br /> what motor are ya putting them in ?<br />and is it for play or competition?

 

[bonitoman]

Re: Pistons, who makes a quality piston?

No its for play. A 150 Johnson 60 degree. I have used all 3 of those pistons. Anyone a favorite of yours Rodbolt? Thanks

 

[rodbolt]

Re: Pistons, who makes a quality piston?

not really<br /> I use the sierra cast or the OMC ones. unless its a crossflow. since the ring locating pin was moved from the bottom of the groove to the top on the OEM crossflow pistons I have seen many pin failures. on the cross flow motors I use the sierra and have had good service and they are reasonable<br /> on that motor I really see no need for forged pistons. with forged pistons there is a chance of "cold" siezure depending on warm up times and if the t-stat works.

 

[bonitoman]

Re: Pistons, who makes a quality piston?

Are the wiseco's forged?

 

[rodbolt]

Re: Pistons, who makes a quality piston?

yes<br /> that is all they make as far as I know.<br />for extreme RPM forged is somewhat stronger.

 

[Ray Neudecker]

Re: Pistons, who makes a quality piston?

We have had excellent service out of the Vortex pistons even in race (high Rpms) applications. If you use forged pistons extra clearance is neccesary to prevent siezure.