Maximizing absolute torque output requires the AMS Performance VR38 Alpha 4.0L Pro Edition Crate Engine and its increased displacement stroker architecture. Command dominating low end spool characteristics in your GT-R during competitive roll racing. Overcoming turbo lag on massive compressor housings allows this specialized race block to spool aftermarket turbos instantly.

Engine Architecture & Core Specifications

- Block Material: OEM cast aluminum VR38DETT, CNC machined, sleeved, and clearance modified for a stroker crankshaft.
- Cylinder Heads: Short block configuration.
- Compression Ratio: Optimized custom compression ratio for high-boost E85 applications.
- Bore & Stroke: 95.5 mm bore x 94.4 mm stroke (4.0L Stroker).
- Rotating Assembly: Custom 4.0L forged aluminum pistons, heavy-duty connecting rods, and a precision billet stroker crankshaft.

Component Breakdown: Built Short Block

Increasing total displacement unlocks monumental low-end torque while eliminating turbo lag entirely.

- A specialized billet stroker crankshaft increases engine displacement to deliver massive low end torque while custom aftermarket cylinder sleeves reinforce the aluminum casting.
- Proprietary forged pistons withstand sustained high RPM thermal loads without expanding out of specification and heavy duty forged rods anchor the rotating assembly.

Vehicle Fitment & Compatibility Matrix

Designed to drop seamlessly into the factory GT-R engine bay, this stroked block aligns perfectly with factory transmission bells. Utilizing one of our custom stroked short blocks bypasses local machine shop wait times entirely.

- Fits 2009-Present Nissan GT-R R35 models requiring massive torque capabilities for large turbochargers.
- Retains factory sensor locations for seamless integration with OEM or standalone engine management systems.

Fuel & Ignition System Requirements

Supplying adequate fuel volume to a four-liter stroked engine requires massive injector capacities and capable pumps.

- Complete fuel system upgrades including brushless pumps and massive injectors are necessitated to feed high horsepower targets safely.
- E85 fuel calibration is heavily recommended alongside heat range adjusted spark plugs demanding tight gapping to hold spark under extreme boost pressures.

Installation, Break-In Oil & Priming Instructions

Proper initial lubrication procedures dictate how well the internal components handle massive torque figures over time.

- Mount the timing chain and cylinder heads onto the block and pull the ignition relays to crank the starter repeatedly to build mechanical oil pressure safely.
- Pour in a certified high zinc break in oil to establish proper piston ring seating before flushing the fluid after exactly 20 minutes of varied engine speeds.

USA Warranty, Emissions & Logistics

Fulfilling this order demands a verifiable factory core and adherence to federal off-road regulations.

- Purchasing this remanufactured race block requires sending a clean and inspectable VR38 core exchange prior to shipping to qualify for machining guarantees.
- Operating strictly for Race Use Only this package demands freight shipping delivery to a commercial loading dock or liftgate at the destination.