Mazworx SR20VE RWD Pro Street Billet Long Block Stage 4

Designed for serious enthusiasts and race-ready street machines, the Mazworx SR20VE RWD Pro Street Billet Long Block Stage 4 is a high-performance engine build proven to exceed 1200 horsepower in real-world applications, including Paul’s renowned Roll Race S13.

Stage 4 Short Block

The foundation of this build is a meticulously crafted short block featuring precision machining and premium components to ensure strength and durability under extreme conditions.

• Complete hot tank cleaning and cylinder resizing
• Honing with torque plate to guarantee precise cylinder bore accuracy
• Balanced crankshaft for smooth operation and reliability
• Use of the Mazworx SR20VE RWD Pro Street Billet block for enhanced rigidity
• CP Pistons with 89mm bore and 10:1 compression ratio, upgraded wrist pins with .250″ wall thickness
• Heavy-duty Carrillo rods with 7/16″ bolts for maximum strength
• Calico coated ACL race bearings for improved wear resistance
• Billet front cover included

Stage 3 Cylinder Head

The cylinder head is expertly ported and assembled to optimize airflow and performance.

• Complete disassembly, hot tank cleaning, and resurfacing
• Specialized modifications including drilling, tapping, and replacement of oil port and freeze plugs for the SR20VE head
• Stage 3 CNC porting and chamber work for enhanced flow characteristics
• Precision valve job with multi-angle cutting and valve lash setting
• Reworking and installation of valve guides and seals
• Assembly with high-quality parts including Supertech titanium retainers, dual valve springs rated at 115lbs, and intake/exhaust valve stem seals
• Mazworx turbo shimless valve sets with +1mm intake and +2mm exhaust valves for improved performance
• Kelford Racing cams (184-TK VVL Killer) designed for the SR20VE

Complete Long Block Assembly

This long block includes all necessary assembly labor and premium components to provide a turnkey solution.

• Mazworx copper fire ring head gasket for reliable sealing
• Mazworx/ATI SR20 RWD street damper with integrated 60-2 trigger wheel for accurate timing
• Mazworx crank and cam sensor kit
• High-quality timing chain kit and Mazworx timing chain tensioner
• Mazworx SR20 engine bolt kit designed for RWD block with VVL head
• Kelford adjustable cam gears for precise cam timing
• Billet dry sump oil pan with dry sump pump, pulleys, and scavenge lines for optimal oil management
• Mazworx billet valve cover and billet water necks (with or without thermostat)
• Miscellaneous seals, gaskets, and core engine parts included

Additional Information

The engine comes with shipping brackets and does not require a core exchange.