AMS Performance VR38 Stage 6 Long Block for R35 Nissan GT-R


AMS Performance VR38 Stage 6 Long Block

Available on backorder

SKU: ALP.07.04.0506-1 Categories: , Brand:

AMS Performance VR38 Stage 6 Long Block for R35 Nissan GT-R

For more than twenty years, AMS Performance has distinguished itself as a leader in the automotive aftermarket industry, renowned for its cutting-edge forced induction technology. Their performance systems are celebrated for raising the bar in both quality and innovation.

The AMS Performance 4.3L VR38 Stage 6 Long Block represents the peak solution for maximizing horsepower in Nissan GTRs. This long block, prepared for simple installation, benefits from the precision craftsmanship of AMS’s sophisticated in-house machinery. It has been thoroughly enhanced to withstand the incredible forces generated by the OMEGA and ALPHA upgrade packages. Crafted within a meticulously controlled clean room environment, each engine is a testament to flawless engineering. Harnessing the wisdom from decades of victories on the race track, AMS has created the most robust and sophisticated engine program for the Nissan VR38.

The Pinnacle of VR38 Engines

  • Drawing on a storied history of track success, AMS has elevated the VR38DETT V6 engine to unprecedented levels. Through the innovation of unique AMS components, they’ve delivered an engine program that surpasses all others in strength and sophistication, confirmed by notable track performances. The 4.3L VR38 Stage 6 Long Block from AMS Performance is designed for unrivaled power and dependability. Engineered as a fully integrated assembly, it eases installation with a design that’s ready to seamlessly fit into your GTR, utilizing the finest AMS-spec components.

Race Winning Experience Creates Higher Standards

  • AMS’s approach to engine construction is informed by the excellence and precision of their championship-winning vehicles. Opting for an AMS engine grants access to over two decades of elite racing engine development. Every engine is meticulously balanced, blueprinted, and assembled to align with the rigorous performance demands of their 3000+ WHP race cars. Detailed inspections of each block guarantee a dependable foundation for the engine, while exhaustive spec sheets document all specifications, showcasing AMS’s unwavering commitment to quality.


  • The perfect solution for high horsepower builds
  • Best suited for turbo kits up to 68mm inducers
  • Fully assembled long block ready for manifolds and accessories
  • Incorporates AMS Billet Block for exceptional strength
  • 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: 4.3L
  • Bore: 98mm
  • Stroke: 94.4mm
  • Appx. Compression Ratio: 10 : 1
  • Recommended Rev Limit: 9000rpm
  • Recommended Max Power & Torque: 2200whp / 1350lb-ft

Build Sheet

  • AMS Stage 6 Short Block
    • AMS OMEGA Spec Billet Block
    • AMS extreme duty head gasket sealing solution
    • AMS 98mm Big Bore Ductile Iron Dry Sleeves
    • Bryant Racing Billet “Stroker” Crankshaft
    • Manley 300M Connecting Rods to AMS spec
    • Manley Pistons to AMS spec (gas ported)
    • 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
    • AMS Billet Deep Oil Pan
    • ATI Crank Balancer
    • Sterling Charcoal powder coated timing covers
  • AMS Stage 6 Head Package
    • T1 Race Development Stage 2 CNC Head Porting Package
    • Custom copper valve seats
    • Cylinder head recondition, clean, reassemble
    • Ferrea high performance valve job
    • Deck / resurface
    • Shim and set valve lash
    • Ferrea +1 Valves, Dual Valve Springs, Titanium Retainers, Lock, Seals, Seats, Bronze Valve Guides
    • Tomei 282 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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