Mazworx SR20VE FWD Long Block Stage 3 Sport FWD

The Mazworx SR20VE FWD Long Block Stage 3 Sport is a high-performance engine assembly designed for Nissan chassis B13 and B14. This long block combines meticulous machining, premium parts, and expert assembly to deliver a durable and potent powerplant tailored for racing and high-performance applications.

Block Preparation and Machining

• Complete disassembly and thorough cleaning including hot tank and sand blasting
• Threaded freeze plug installation and machining for turbo oil feed and drain ports
• Cylinder resizing with torque plate honing to ensure precision bore alignment
• Step decking and machining grooves for the copper fire ring gasket
• Line boring and crankshaft polishing, balancing, and inspection for optimal reliability

Internal Components

• Custom heavy-duty CP pistons with 89mm bore and 10:1 compression ratio featuring upgraded .250″ wall wrist pins
• R&R forged aluminum connecting rods for strength and durability
• Mazworx 86mm billet race crankshaft designed for enhanced performance
• ACL racing bearings to withstand high RPM and stress

Engine Block Enhancements

• Billet front cover and billet main caps with Mazworx main stud kit for improved block stiffness
• Mazworx billet girdle to support bottom end rigidity
• Darton cylinder sleeves for durability and heat dissipation
• Threaded and O-ringed freeze plug kits to prevent coolant leaks
• Special front oil squirter for efficient piston cooling
• Billet breather adapter to enhance crankcase ventilation

Stage 3.5TK Cylinder Head

• Complete disassembly, cleaning, and machining including plug replacements and provision for -16AN fittings
• Stage 3 CNC porting with a 90mm CNC chamber increase for improved airflow
• Machining for 1/2″ head studs and resurfacing for a precise sealing surface
• Valve service includes multi-angle valve job, intake valve seat replacements, and adjustment of valve lash and tips

Cylinder Head Components

• Mazworx shimless valves with +1mm intake and +2mm exhaust sizes
• Supertech valve stem seals and titanium valve retainers for weight savings and durability
• Supertech dual valve springs rated at 115 lbs for SR20VE
• Supertech bronze valve guides for longevity
• Kelford Racing cams (184-TK) providing aggressive 252° intake and exhaust profiles with VVL control
• Threaded and O-ringed freeze plug kit for SR20VE head to enhance sealing

Long Block Assembly

• Complete assembly of long block components with premium sealing using Mazworx copper fire ring head gasket
• Installation of Mazworx 1/2″ head studs for improved clamping force
• Mazworx/ATI SR20 FWD race damper with 36-2 trigger wheel included
• Crank and cam sensor kit, timing chain kit, and Mazworx timing chain tensioner for precise timing control
• Mazworx SR20 FWD engine bolt kit and Kelford adjustable cam gears
• Valve cover powder coated and serviced with Mazworx P11 valve cover washer kit
• Mazworx billet dry sump oil pan with scavenge lines paired with Mazworx/ARE dry sump pump and pulley for effective oil management
• All necessary seals and gaskets to complete assembly

Note: Requires a core SR20VE long block to proceed with assembly and upgrades.