Arias
Arias

Arias Pistons has been a pioneer in forged piston technology for over 50 years, supplying engine builders with the strength, precision and innovation needed for high-performance street and race engines. Their pistons are known worldwide for handling extreme boost, nitrous and high compression applications.
Spool Imports offers Arias forged pistons for popular platforms including Nissan RB, Toyota JZ, Ford Barra, SR20, Mitsubishi 4G63, Subaru EJ, GM LS and Honda K/B series. Each set is engineered for exact fitment, with options tailored to turbocharged, supercharged or naturally aspirated builds.
Why choose Arias Pistons: precision-forged from premium alloys, Arias pistons are designed with advanced skirt profiles, reinforced ring lands and tight weight tolerances. This combination delivers maximum strength without excess weight, making them ideal for both drag racing and endurance builds.
- Forged from premium 2618 alloy for strength and durability.
- Lightweight designs to reduce rotating mass and improve response.
- Reinforced ring lands to handle high boost and nitrous oxide.
- Custom compression ratios available for specific applications.
Applications & fitment: Arias produces pistons for a wide range of JDM, Aussie and US performance engines. Always verify bore size, compression ratio and pin type (floating vs. press-fit) before ordering. Pair with quality rods, bearings and fasteners for best results.
Why buy from Spool Imports: we source Arias pistons directly for the most popular engines, ensuring you get the latest designs and fastest shipping. As a Capricorn Preferred Supplier, Spool makes it easy for workshops and trade customers to purchase with confidence.
Explore the full range of Arias Pistons at Spool Imports and build an engine ready to handle serious power.