AMS VR38 Alpha 3.8L Pro Edition Crate Engine

Description

Retain strict closed-circuit operational parameters with the AMS VR38 Alpha Crate Engine Pro Edition package. Built for Nissan GT-R competition, this 3.8-liter twin-turbocharged V6 long block generates 1,200 brake horsepower at 7,800 RPM. Reinforced sleeves, custom valvetrain, and race-proven reciprocating parts deliver unmatched structural defense against violent combustion pressures during track day sessions and drag passes.

High-strength ductile iron sleeves seat within the cast aluminum closed-deck block before precision deck leveling. A nitrided 4340 billet steel crankshaft spins within six-bolt billet steel main caps. Forged 4340 H-beam connecting rods anchor 95.5 millimeter 2618 forged aluminum pistons over an 88.4 millimeter stroke. A 9.2:1 compression ratio optimizes high-pressure turbo boost. Sump oil volume measures 6.5 quarts in a wet pan. Total dry engine weight registers at 450 lbs.

Key Features of AMS VR38 Pro

Engine builders buy AMS VR38 Pro crate engine systems to achieve four-digit horsepower with complete internal stamina. The long block bolts flush into Nissan GT-R engine bays using factory subframe anchor points.

• Ductile iron sleeves eliminate cylinder bore distortion under immense boost pressures.
• 2618 forged pistons endure continuous thermal expansion without skirt galling.
• Billet steel main caps lock the crankshaft in position under load.
• ARP Custom Age 625 studs clamp cylinder heads under high combustion pressures.
• CNC-ported cylinder heads increase high-RPM airflow to feed oversized twin turbochargers.
• Uprated dual valve springs eliminate valve float up to 8,000 RPM.
• High-pressure oil pump components maintain hydrodynamic flow across journal surfaces.
• Dynamic balanced VR38 Pro rotating components isolate harmful crank harmonics.

Dynamic Boost Cam Dyno Output

Generating immense torque from 3,500 to 7,800 RPM, this long block engine produces 1,200 brake horsepower and 950 lb-ft torque on E85 fuel or 105-octane racing fuel. Competition camshafts provide 264 degrees duration with 10.8-millimeter valve lift to maximize high-RPM airflow. Manifold vacuum measures 13 in-Hg at an 850 RPM competition idle. Hot engine oil pressure holds steady between 58 to 78 PSI under hard acceleration, lubricating main journals and high-temperature twin turbocharger cartridges during severe track pulls.

Chassis Crossmember Bellhousing Fitment Clearances

Engineers configured this block for the Nissan GT-R factory all-wheel drive transaxle driveshaft setup. Internal neutral balancing prevents flexplate fatigue during hard launches. Factory engine mount points drop straight onto stock front subframes. Billet oil pan profiles preserve clearance around front differential shafts and steering racks without chassis alterations.

Break-In Protocol Racing Duty Limits

Pre-lube all internal oil passages using high-zinc mineral break-in oil through a pressurized canister before starting ignition. Expel trapped air from cooling circuits through top bleeder screws. This engine is not engineered for raw sea water cooling, fuel with octane ratings below 93 under boost, or unmonitored nitrous oxide injection.

• Evacuate break-in lubricant following the initial 50 dyno miles.
• Renew competition synthetic motor oil every 1,500 track miles.
• Check spark plug gaps and valve lash every 12 months.

Warranty Coverage Pallet Crate Manifest

A 12-Month competition limited warranty protects against material and manufacturing defects. The reinforced wooden pallet crate houses the complete long block, billet oil pan, timing covers, harmonic damper, spark plugs, dyno test certification sheet, and installation guide. Components ship vacuum-wrapped to halt oxidation during transit.