DJ Rock IV225 Engine Intake Valve

Honda Prelude Intake Valve IV225

The DJ Rock IV225 engine intake valve is a direct-fit replacement for select 1992-1996 Honda Prelude applications. Built with a nitride-coated surface, 34 mm valve head diameter, 6.6 mm stem diameter, and 103.6 mm overall length, it is specified for intake-side valvetrain service where accurate airflow control matters.

Key Features

• Direct-fit engine intake valve for select Honda Prelude models
• Nitride-coated material for improved wear resistance and corrosion protection
• 34 mm valve head diameter for application-specific fitment
• 6.6 mm stem diameter and 103.6 mm overall length
• 1 lock groove design
• Premium grade replacement part

Detailed Description

DJ Rock IV225 is an engine intake valve engineered for the 1992-1996 Honda Prelude. It opens at the correct camshaft interval to admit the air-fuel charge into the combustion chamber, supporting proper engine breathing and consistent power delivery. The nitride-coated finish helps the valve withstand heat, reduce friction, and resist corrosion in demanding valvetrain conditions. This part number, IV225, is built as an application-specific replacement for intake valve service on the Honda Prelude.

This part cross-references 021-3328 and V-3919 for the same application.

What It Helps Address

• Low compression caused by a worn or damaged intake valve
• Valve sealing issues that affect idle quality and combustion efficiency
• Reduced airflow into the cylinder from valve wear or heat damage
• Engine performance loss related to intake-side valvetrain wear
• Service replacement needs during cylinder head repair

Installation Notes and Tips

Fits 1992-1996 Honda Prelude, intake. Verify valve head diameter, stem diameter, overall length, and lock groove count against the original part before installation. Cylinder head machining, valve seat inspection, and proper valve stem seal service should be completed during repair to maintain sealing performance.

Quality Assurance

DJ Rock IV225 is manufactured to meet or exceed OEM quality standards using heat-resistant alloy construction and a nitride-coated surface for durability in high-temperature engine environments.