AMS Performance VR38 Stage 3 Long Block for R35 Nissan GT-R


AMS Performance VR38 Stage 3 Long Block

Available on backorder

SKU: ALP.07.04.0503-1 Categories: , Brand:

AMS Performance VR38 Stage 3 Long Block for R35 Nissan GT-R

For more than twenty years, AMS Performance has been at the forefront of innovation in the automotive aftermarket industry, especially in the realm of forced induction. Their performance systems are renowned for pioneering quality and innovative solutions.

Introducing the AMS Performance 4.1L VR38 Stage 3 Long Block, the definitive high-performance upgrade for Nissan GTR enthusiasts. This long block, pre-assembled and precision-engineered with AMS’s sophisticated equipment, is designed for quick and easy installation. It has undergone extensive enhancements to withstand the immense power and torque generated by the OMEGA and ALPHA upgrade packages. Constructed in an advanced clean room that meticulously controls temperature and humidity, AMS guarantees that each component is crafted with unparalleled precision. Leveraging years of success on the racetrack, AMS has developed the most robust and sophisticated engine program for the Nissan VR38.

The Pinnacle of VR38 Engines

  • Drawing on a history of racing victories, AMS has elevated the VR38DETT V6 engine to the apex of engine performance. With the creation of exclusive AMS components, they’ve established a motor program that stands as the pinnacle of reliability and power for the GTR, supported by solid track performance evidence. The 4.1L VR38 Stage 3 Long Block from AMS Performance is designed for seamless integration into your GTR, featuring a complete assembly that simplifies installation. It utilizes the finest components, both off-the-shelf and AMS-specific, adhering to the highest quality standards.

Race Winning Experience Creates Higher Standards

  • AMS’s engines are crafted with the same meticulous attention to detail as their record-breaking race cars. Opting for an AMS engine is an investment in a rich heritage of racing engine development, drawing on the assembly of thousands of race engines over two decades. Like their 3000+ WHP race cars, each engine is expertly balanced, blueprinted, and assembled to meet rigorous specifications. Each block is carefully inspected to ensure it provides a solid foundation for the engine. Additionally, AMS documents every engine’s specifications in an archived spec sheet, highlighting tolerances, torque specs, and clearances, underscoring their commitment to quality control.


  • The perfect solution for high horsepower builds
  • Best suited for the OMEGA 14 and ALPHA 18X turbo kits (up to 68mm inducers)
  • Fully assembled long block ready for manifolds and accessories
  • Precision machining with advanced industry leading equipment
  • Assembled in state-of-the-art temperature and humidity controlled clean room
  • Utilizes your existing engine as a core to build from
  • New OEM gaskets, seals, and hardware throughout
  • ARP CA625+ head studs for additional clamping force and head gasket sealing

Technical Specifications

  • Displacement: 4.1L
  • Bore: 95.5mm (grade 1,2, or 3 varies)
  • Stroke: 94.4mm
  • Appx. Compression Ratio: 9.75 : 1
  • Recommended Rev Limit: 8400rpm
  • Recommended Max Power & Torque: 1500whp / 1200lb-ft

Build Sheet

  • AMS Stage 3 Short Block
    • Inspect and blueprint engine block
    • Hone / recondition cylinder to size
    • Main girdle reinforcement and 12mm ARP studs
    • Hone main journals to AMS spec
    • Bryant Racing Billet “Stroker” Crankshaft
    • Manley 300M Connecting Rods to AMS spec
    • Manley Pistons to AMS spec
    • BBC Rod Bearings conversion
    • Bryant Crankshaft full balance job
    • King Main Bearings
    • BBC modified rod bearings
    • New OEM seals and gaskets
    • New OEM timing chains
    • AMS proprietary timing system upgrade
    • AMS OEM oil pump rebuild and pressure modification
    • Multiple stage cleaning and prep process
    • ARP CA 625+ Head Studs
    • Cometic head gaskets
    • AMS Billet Deep Oil Pan
    • Fluidamper Crank Balancer
    • Sterling Charcoal powder coated timing covers
  • AMS Stage 3 Head Package
    • Cylinder head recondition, clean, reassemble
    • Ferrea high performance valve job
    • Deck / resurface
    • Shim and set valve lash
    • Ferrea std valves, dual valve springs, titanium retainers, lock, seals, seats
    • AMS ALPHA 272 Camshafts
    • Combustion chamber / head gasket reinforcement modifications with included hardware
    • Proprietary cylinder head and cam shaft modifications


  • 2009+ Nissan GT-R: R35  |  3.8L TT V6 VR38DETT

Other Stages


  • Horsepower, torque figures, and RPM limits are estimations and can differ widely due to various influences like turbocharger choice, intake and exhaust constraints / backpressure, as well as fuel octane and quality, among other factors. The numbers provided here are derived under ideal conditions with the right supporting modifications and represent achievable outcomes for the typical customer. However, individual results may differ.
  • It is assumed that a long block in good condition is provided for the build. To prevent confusion and the risk of missing parts, it is requested that all long blocks be shipped fully assembled, from valve covers to oil pan, including timing covers and crank pulley. Any components found to be in non-reusable condition will be identified and replacements will be quoted during the engine assembly process.
  • Fits all USDM, JDM, Gulf, and European (LHD & RHD) CBA, DBA, EBA & 4BA models

CARB and / or EPA Compliance Testing Not Completed

  • They believe that this product is either applicable for a CARB EO exemption or complies with the EPA’s Anti-Tampering Policy, yet the necessary testing and administrative processes have not been completed at this time. Consequently, this product is not available for purchase for emissions-controlled vehicles situated within California, nor can it be shipped to addresses in California, without a completed AMS Race Waiver form. Users outside of the United States are advised to comply with their local laws and regulations.

About AMS Performance

AMS Performance stands out in the realm of turbocharged vehicle enhancement, not just as a frontrunner in the manufacturing of automotive performance parts but also by providing comprehensive services including in-house engine computer calibration, installations of parts and packages, along with engine and transmission building. Distinctively an engineering-driven entity, AMS differentiates itself from other outfits by designing parts that set the performance standard in the industry, utilizing advanced computer-aided designs and the expertise of mechanical engineers with extensive motorsports background. Since its inception 20 years ago, AMS Performance has maintained its leading position, offering everything from turn-key solutions to bespoke components tailored to surpass a variety of performance objectives. Catering to a wide range of motorsport activities from drag racing to road racing, AMS is dedicated to elevating the driving experience for enthusiasts across the spectrum.

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions.
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