AMS Performance VR30 Red Alpha Stage 2 Performance Engine

Description

Conquering severe thermal loads and torque spikes requires the AMS Performance VR30 Red Alpha Stage 2 Performance Engine with its reinforced H-beam rod architecture. Maintain consistent engine geometry during aggressive canyon carving and drag launches. Eliminating internal mechanical stress under high load allows this advanced short block to utilize CNC line-bored aluminum castings to eliminate factory weak points for reliable 1000 HP pulls.

Engine Architecture & Core Specifications

• Block Material: OEM cast aluminum VR30DDTT, utilizing advanced CNC line boring and honing.
• Cylinder Heads: Built short block only; ready to accept your modified or factory cylinder heads.
• Compression Ratio: 10.3:1 compression maintains off-boost torque and spool characteristics.
• Bore & Stroke: 86.0 mm bore x 86.0 mm stroke (3.39 in x 3.39 in).
• Rotating Assembly: Heavy-duty forged aluminum pistons, H-beam connecting rods, and a balanced factory crankshaft.

Component Breakdown: Built Short Block

• Precision line boring guarantees the crankshaft rotates with zero bind or distortion under heavy thermal loads.
• Upgraded heavy-duty forged pistons manage intense cylinder temperatures generated by larger aftermarket turbos.
• Thick forged H-beam rods prevent catastrophic bending under heavy torque loads and aggressive launches.
• Race-calibrated rod and main bearings provide superior load capacity to protect the bottom end.
• ARP main fasteners clamp the bottom end securely to prevent main cap walk when pushing maximum boost.

Vehicle Fitment & Compatibility Matrix

This Stage 2 setup integrates flawlessly into the factory chassis, utilizing original mounting points and hardware. Sourcing one of our heavy-duty Infiniti crate engines provides a turn-key foundation for your next high-horsepower build.

• Fits 2023-Present Nissan Z RZ34 platforms to provide the perfect foundation for upgraded twin-turbo setups.
• Fits 2016-Present Infiniti Q50 models dropping directly into both the AWD and RWD chassis.
• Fits 2016-Present Infiniti Q60 models dropping directly into both the AWD and RWD chassis.

Fuel & Ignition System Requirements

• High-flow direct injection fuel pumps and upgraded injectors are mandated to prevent catastrophic lean conditions.
• Running E85 is highly recommended for thermal management although 93 Octane serves as the absolute minimum.
• The engine accepts standard OEM coil packs without any modification.
• Colder spark plugs gapped tightly ensure consistent ignition under heavy boost environments.

Installation, Break-In Oil & Priming Instructions

• Bolt on the factory cylinder heads and time the engine strictly per Nissan factory specifications.
• Add high-zinc engine break-in oil to the crankcase to properly seat the new piston rings.
• Turn the engine over with the fuel system disconnected until the oil pressure gauge registers mechanical pressure.
• Reconnect the fuel system to start the motor and perform a 20-minute heat cycle at varied low RPMs.
• Perform an immediate oil change after the first cycle followed by a 500-mile conservative driving break-in period.

USA Warranty, Emissions & Logistics

• The core exchange program requires sending in a crack-free OEM block for inspection prior to shipment.
• AMS Performance assembly guarantees apply exclusively when tuned and installed by certified automotive facilities.
• This off-road race block is strictly for Race Use Only and is not CARB compliant.
• The package delivers via LTL Freight to commercial addresses equipped to offload heavy wooden crates safely.