AMS Performance Nissan R35 GTR 4.3L VR38 Stage 7 Pro Mod Long Block (ALP.07.04.0507-1)

The AMS Performance 4.3L VR38 Stage 7 Pro Mod Long Block is the pinnacle solution for high-horsepower builds in the Nissan GTR. This fully assembled long block is precision-crafted using advanced in-house equipment and strategically strengthened to handle the immense power and torque generated by AMS's OMEGA and ALPHA performance packages. Assembled in a state-of-the-art clean room with meticulous attention to detail, it represents the most advanced engine program AMS has engineered for the VR38DETT V6. Featuring a billet short block, the Stage 7 Pro Mod Long Block stroker engine ensures reliable, high-horsepower performance, using both custom-designed and off-the-shelf AMS components. Ready for effortless installation, this complete assembly includes everything from valve covers to oil pan and timing chain components.

Vehicle Fitment:
2009-2011 Nissan R35 GT-R (CBA)
2012-2016 Nissan R35 GT-R (DBA)
2017-2019 Nissan R35 GT-R (Facelift DBA / “EBA”)
2020+ Nissan R35 GTR (4BA)
(Fits all LHD & RHD USDM, JDM, Gulf, and European Models)

Technical Specs:
Displacement: 4.3 liters
Bore: 98 mm
Stroke: 94.4 mm
Appx. Compression Ratio: XX:1
Recommended Rev Limit: 9000 RPM*
Recommended Max Power & Torque: 2500 WHP / 1500 lb-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
• T1 “Pro Mod” Piston Set
• Bryant Racing Billet “Stroker” Crankshaft
• GRP Aluminum Connecting Rods to AMS Spec (BBC Bearing Spec)
• 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 5 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 w/included Hardware
• Proprietary Cylinder Head and Cam Shaft Modifications


Features:
• The perfect solution for high horsepower builds
• Best suited for turbo kits with 76mm inducers or larger
• Incorporates AMS billet block for exceptional strength
• 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

Performance Gains with a Stroker Engine Build in a Nissan R35 GTR:
A stroker engine offers various performance benefits, such as enhanced engine responsiveness and higher horsepower. By installing a stroker kit, engine displacement can be increased from 3.8L to 4.1L, leading to improved power output. The longer stroke enables a larger fuel/air charge, resulting in more torque at low RPMs. However, the increased piston travel may limit high-RPM performance, slightly reducing engine responsiveness. The longer crankshaft throws also increase engine volume, which boosts airflow and helps raise horsepower levels.

• *Horsepower, torque, and RPM estimates can vary significantly based on factors such as turbo selection, exhaust restrictions, fuel quality, and more. The numbers listed are based on ideal conditions, but actual results may differ depending on the setup.
• Occasionally, components may be substituted due to supply chain delays. Your AMS Sales Representative will notify you of any changes before the assembly process begins.
• We require a good condition core long block to start the build. To avoid any confusion or missing components, please send the long block fully assembled with valve covers, oil pan, timing covers, and crank pulley. Any parts that cannot be reused will be quoted for replacement during the assembly process.

Shipping Times:
Please note that all engines are built to order and can take 2-8 weeks. Please call to confirm a more precise ETA.

Benefits of an AMS Built Long Block Engine:
All AMS engines are built by hand with the same meticulous care as the engines that power our world record-setting race cars. When you choose an AMS-built engine, you are investing in over 20 years of knowledge and experience, gained from assembling thousands of race engines. Every motor, like those in our 3000+ WHP race cars, is carefully balanced, blueprinted, and assembled to our precise standards. Before assembly, we inspect each engine block for key factors like dimensions, cylinder bore, main alignment, and block flatness to ensure a strong foundation. Additionally, a comprehensive spec sheet is provided with every engine, documenting tolerances, torque specs, and clearances for your peace of mind.

Discounts:
We are sorry, discounts and codes are not available for AMS Products.

See more Alpha Performance Parts