Mazworx SR20VE FWD Short Block Stage 4 NA
$7,499.00
The Mazworx SR20VE FWD Short Block Stage 4 NA is a precision-built, naturally aspirated short block designed for Nissan SR20 engines, especially for B13 and B14 chassis. Featuring high-end forged pistons, billet stroker crankshaft, and comprehensive machining — including Darton dry sleeves and step deck block machining — this short block provides a reliable and robust foundation for your performance build. Core block required separately.
Modern Production Capabilities.
Advanced Engineering & Race Tested.
Modern Production Capabilities.
Advanced Engineering & Race Tested.
The Mazworx SR20VE FWD Short Block Stage 4 NA is a high-performance engine short block designed specifically for Nissan SR20 applications, particularly B13 and B14 chassis. This stage 4 naturally aspirated (NA) short block combines meticulous machining and premium parts to deliver an optimized foundation for your build.
Comprehensive Labor and Machining
- Complete disassembly and reassembly of the short block
- Hot tank cleaning and sand blasting of the block to ensure cleanliness
- Removal, retapping, and replacement of oil port plugs for reliability
- Machining for installation of threaded freeze plugs
- Installation of Darton dry sleeves and precise resizing of cylinders to 92mm using torque plate honing for consistent bore geometry
- Step deck machining to improve block rigidity
- Line bore resizing for accurate bearing alignment
- Crankshaft cleaned, checked, balanced, and polished to exacting standards
Premium Components
- Custom X-Forged lightweight CP pistons, 92mm diameter, with a 14.5:1 compression ratio
- Mazworx billet lightweight 92mm stroker crankshaft optimized for strength and performance
- Increased length R&R aluminum connecting rods for enhanced durability
- ACL race bearings for improved wear resistance
- Oil pump sourced from the SR20VE for compatibility
- Darton dry sleeves for superior cylinder wear characteristics
- Mazworx SR20 main stud kit for enhanced block clamping force
- Mazworx threaded and O-ringed freeze plug kit to prevent coolant leaks
- Mazworx front oil squirter designed for SR20 blocks
- Options for oil squirter deletes available
- Main stud spacers and various plugs included for assembly completeness
Additional Information
Please note, a core block is required for this short block build. Available core options include sending in your SR20VE 53J block.
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