AMS Performance VR38 Alpha 3.8L Pro Edition Crate Engine

Description

Conquering severe thermal loads requires the AMS Performance VR38 Alpha 3.8L Pro Edition Crate Engine and its reinforced cylinder sleeves. Maintain consistent engine geometry in your bottom end during aggressive drag launches. Eliminating internal mechanical stress under high load allows this advanced short block to prevent catastrophic block distortion reliably.

Engine Architecture & Core Specifications

• Block Material: OEM cast aluminum VR38DETT, precision CNC line bored and fitted with ductile iron sleeves.
• Cylinder Heads: Built short block only.
• Compression Ratio: Factory 9.0:1 compression maintains off-boost drivability.
• Bore & Stroke: 95.5 mm bore x 88.4 mm stroke (3.8L Displacement).
• Rotating Assembly: Heavy-duty forged aluminum pistons, extreme-duty H-beam connecting rods, and a balanced factory crankshaft.

Component Breakdown: Built Short Block

Engineering an indestructible bottom end requires replacing standard aluminum walls with highly reinforced iron sleeves.

• Custom aftermarket cylinder sleeves prevent cylinder wall cracking under massive boost pressures associated with large turbo upgrades while high tensile fasteners lock down the main caps.
• Thick forged connecting rods and heavy duty forged pistons prevent catastrophic bending while managing intense cylinder temperatures generated during prolonged track sessions.

Vehicle Fitment & Compatibility Matrix

This Pro Edition setup integrates flawlessly into the factory GT-R chassis by utilizing original mounting points and hardware. Sourcing one of our heavy-duty forged crate engines provides a turn key foundation for your next high horsepower build.

• Fits 2009-Present Nissan GT-R R35 platforms to provide the perfect foundation for upgraded twin turbo setups.
• Aligns flawlessly with the factory transmission bellhousing and OEM motor mounts.

Fuel & Ignition System Requirements

Achieving four-digit horsepower figures dictates utilizing heavy-duty fueling hardware and specialized tuning parameters.

• High flow direct injection fuel pumps and upgraded injectors are mandated to prevent catastrophic lean conditions across the RPM band.
• Running E85 is highly recommended for thermal management while utilizing colder spark plugs gapped tightly to ensure consistent ignition.

Installation, Break-In Oil & Priming Instructions

Professional mechanical preparation separates a successful engine build from a catastrophic premature failure.

• Bolt on the factory cylinder heads and turn the engine over with the fuel system disconnected until the oil pressure gauge registers mechanical pressure.
• Add high zinc engine break in oil to the crankcase to properly seat the new piston rings before performing a 500 mile conservative driving break in period.

USA Warranty, Emissions & Logistics

Completing this transaction requires careful coordination of core returns and heavy freight handling.

• The core exchange program requires sending in a crack free OEM VR38DETT block for inspection prior to shipment to activate assembly guarantees.
• This off road race block is not CARB compliant and delivers via LTL Freight to commercial addresses equipped to offload heavy wooden crates safely.