Mazworx SR20VE Stage 1 Cylinder Head Turbo Street

Designed specifically for street turbo applications, the Mazworx SR20VE Stage 1 Cylinder Head delivers enhanced performance and reliability for Nissan SR20 engines. Built to support up to 600 horsepower, this fully assembled cylinder head combines precision machining with high-quality components to ensure optimum power and durability under boosted conditions.

Key Features

• Optimized for street turbocharging, supporting up to 600 hp
• Available with CNC-machined combustion chambers of 87mm or 90mm for improved flow and efficiency
• Option to machine for 1/2″ head studs for enhanced head clamp load
• Choice between standard size shimless valves and conventional valves to suit your build preferences

Comprehensive Labor and Assembly

Each Mazworx SR20VE Stage 1 head undergoes detailed refurbishment and assembly steps to meet exacting standards:

• Complete disassembly and thorough hot tank cleaning
• Modification of oil port plugs by removal, drilling, tapping, and replacement to optimize oil flow
• Installation of threaded freeze plugs with O-ring seals (replacing standard 16mm plugs) for improved sealing and durability
• Valve seat and bowl blending for enhanced combustion chamber flow characteristics
• Precision reaming, removal, and reinstallation of valve guides using durable bronze guides
• Multi-angle valve job performed for optimal seating and performance
• Setting of valve lash and tip clearance by skilled technicians
• Resurfacing of the head to ensure flatness and proper sealing
• Complete assembly with high-quality components

Premium Components Included

• Supertech standard size valves (with option for Mazworx shimless valves)
• Supertech valve stem seals to maintain oil control
• Supertech titanium valve retainers for durability and weight savings
• Supertech dual valve springs rated at 83 lbs, designed for SR20VE applications with turbo boost
• Bronze valve guides for enhanced wear resistance
• Mazworx threaded and O-ringed freeze plug kit, designed specifically for the SR20VE cylinder head

Note: A virgin SR20VE core head is required for this build, as this product is a fully assembled cylinder head upgrade.