Product Overview

Kit includes:

6 Inconel exhaust valves
6 Stainless steel intake valves

Fits Sea-Doo 1503cc 4TEC Rotax engine.

Intake Valves:

Set of six intake valves. Made of one piece forged stainless steel, fully CNC machined, have a hard chrome treatment, and hard tips. The CNC process eliminates any imperfections from the forging. They undergo a heat-treatment to ensure proper molecular integrity and uniform grain structure throughout the valve. The Hard chrome plating reduces wear and provide optimum anti-friction performance. Excellent for hi-performance or racing applications.

Made exclusively from an enhanced versions of EV8 (21-4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application.

Exhaust Valves:

Set of six exhaust valves. Made from one piece, forged Inconel alloy, fully CNC machined, has a hard chrome treatment and a hard tip. Excellent for those looking to rebuild the cylinder head, or replacing bent valves, and wanting a high-power performance engine.

Inconel is an alloy that cope well with very high temperatures, such as the temperatures exhaust valve are subjected to and attain, especially since, unlike intake valves, there is no fuel that goes through them that would be able to cool them down.

Inconel is used for exhaust valves because Inconel alloy is very well suited for high-temperature and high-pressure environments, it is much more stable than stainless steel at high temperatures, as well as being resistant to corrosion and oxidation.

Inconel valves are widely used in dragsters and funny cars. The CNC process eliminates any imperfections from the forging. They undergo a heat-treatment to ensure proper molecular integrity and uniform grain structure throughout the valve. The Hard chrome plating reduces wear and provide optimum anti-friction performance. Excellent for high-performance or racing applications.

This Nickel base alloy material is used for exhaust valves in engines that reach very high temperatures and its use is growing with the application of turbos and superchargers.

Far superior than stock valves.

Fits: