AMS ALP.07.04.0306-1 Billet "Pro Mod" Short Block Stage 6 4.3L VR38 for NISSAN Z (RZ34) 2022-

Description AMS ALP.07.04.0306-1 Billet "Pro Mod" Short Block Stage 6 4.3L VR38 for NISSAN Z (RZ34) 2022-

The AMS Performance 4.3L VR38 Stage 6 Billet Pro Mod Short Block is engineered for high horsepower Nissan GTR builds. This fully assembled short block is designed for straightforward installation and is produced with precision machining using advanced in-house equipment. Each AMS engine is strategically strengthened to support the significant power and torque of OMEGA and ALPHA performance packages. Assembled in a temperature and humidity controlled clean room, every detail is crafted with meticulous attention.

AMS applies decades of race-winning experience to the Nissan VR38, resulting in a robust and advanced engine program. The 4.3L VR38 Stage 6 Billet Pro Mod Short Block is supplied as a complete rotating assembly, ready to be integrated with heads, manifolds, and accessories. The engine incorporates an AMS billet block for exceptional strength and uses only the highest quality off-the-shelf and custom AMS spec components.

The billet block features alloy steel main caps with splayed bolts for improved load distribution and a skirted design for enhanced crankshaft support. Custom ductile iron sleeves and thick cylinder walls withstand extreme pressures, allowing for increased displacement to 4.3 liters. This results in quicker spool times and improved low-end torque compared to the factory 3.8L engine.

Every AMS built engine is handcrafted and assembled to precise specifications, with each block checked for correct dimensions, cylinder bore, main alignment, and block flatness. An archived spec sheet documents tolerances, torque specs, and clearances as part of standard quality control.

Product Notes: Horsepower and torque numbers, and RPM limits are approximate and can vary significantly depending on numerous factors such as turbocharger selection, intake and exhaust restriction/backpressure, and fuel octane and quality, among others. The advertised numbers are based on optimal conditions and proper supporting modifications, but are generally attainable by an average customer. Results may vary.

Product Notes: In rare cases, component selection may vary from what is advertised due to supply chain delays. All component substitutions will be communicated in advance by the AMS Sales Representative during the engine assembly process.

Product Notes: No core components are required for the Stage 6 Billet Pro Mod Short Block.

• Fully assembled short block ready for heads, manifolds, and accessories
• Incorporates AMS billet block for exceptional strength
• Precision machining with advanced equipment
• Assembled in a temperature and humidity controlled clean room

Specifications:

• 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: 3000 WHP / 1500 lb-ft*

Kit comes with:

• AMS OMEGA Spec Billet Engine Block
• AMS Extreme Duty Head Gasket Sealing Solution
• AMS 98mm Big Bore Ductile Iron Dry Sleeves
• Hone and Size to T1 “Pro Mod” Piston Spec
• Bryant Racing Billet “Stroker” Crankshaft
• T1 “Pro Mod” Piston Set
• GRP Aluminum Connecting Rods (BBC Bearing Spec)
• Bryant Crankshaft Full Balance Job
• King Main Bearings
• BBC Modified Rod Bearings
• New OEM Seals and Gaskets
• Multiple Stage Cleaning and Prep Process

Vehicle Compatibility:

• 2009-2011 Nissan R35 GT-R (CBA, USDM/JDM/Gulf/European, LHD & RHD)
• 2012-2016 Nissan R35 GT-R (DBA, USDM/JDM/Gulf/European, LHD & RHD)
• 2017-2019 Nissan R35 GT-R (Facelift DBA / “EBA”, USDM/JDM/Gulf/European, LHD & RHD)
• 2020-Current Nissan R35 GT-R (4BA, USDM/JDM/Gulf/European, LHD & RHD)