Watch as Joey builds a VR38DETT from bare block to final assembly. The process is very interesting and we hope it gives everyone an insight into the work and knowledge that goes into building motors capable of 1,000hp to upwards of 3,000hp! Make sure to subscribe to our Youtube Channel so you don’t miss any future episodes. New Vlog every Monday at 11am CST.

We have successfully applied our race-winning experience to the GT-R’s VR38 to bring you the pinnacle in R35 engine programs. By developing AMS proprietary engine components we have engineered the strongest, most advanced VR38 available for your GT-R and we have the World Records to back it up. This is the same engine programs that propelled our Alpha GTRs to be the very first in the world to run 9,8,7, and 6 second quarter mile passes!

Alpha Engineering Provides The Most Fortified Engine Block Available

The Alpha Omega-Spec 3.8 Crate Engine is the strongest, most advanced VR38 engine currently available. Each Alpha Omega-Spec 3.8 Race Engine has been strategically strengthened in multiple ways to support the monstrous power and torque produced by our Alpha Performance twin turbo packages.

Our Race Winning Experience Creates Higher Standards

This race proven power plant uses only the best off the shelf and custom designed Alpha spec. components. Combine that with the latest in machine and assembly practices and you are assured only the best! Each Omega-Spec 3.8L Race Engine is precisely balanced, blueprinted and hand assembled to AMS’ exacting standards. Before assembly each block is checked for correct dimensions, cylinder bore, mains, block flatness, etc… to guarantee you get the best foundation for your new engine.

Not Your Standard Off-the-Shelf Rotating Assembly

We worked closely with Manley to specially design engine components worthy of the Alpha program. For the pistons we added larger and stronger pins and other key features including increasing the compression ratio to boost horsepower throughout the power band. This increase also produces more low end torque which reduces turbo lag and improves boost response. The connecting rods are also unique to the Omega-Spec engine and bolt up to our billet crankshaft.

The Perfect Combination for Alpha Power

The Omega-Spec 3.8L is hand built by AMS with components you cannot get in any other VR38 engine. We apply all of the advancements we’ve made on our record holding Alpha Omega R35 GTR such as an o-ringed block deck, timing chain system upgrades for high RPM operation, oil system improvements and a host of other VR38 secrets we’ve learned over the past 7 years.

Alpha CNC Cylinder Heads And Camshafts Offer The Most Power Across The Whole Power Band

Included in our 3.8L Omega-Spec Crate Engine are Omega-Spec Camshafts tailored to the turbo system and other components you are planning to use. Using knowledge gained from years of Motorsports victories we select the best camshaft for your specific combination giving you the competitive advantage of the most effective and broad power curve. That means you get the most power off the stop light, at the dragstrip, or on the road course and the confidence to leave the competition in your dust!

The Alpha CNC Race Ported Cylinder Heads utilize the latest Ferrea Competition Plus components. Their valvetrain components are made from exotic alloy materials to withstand high boost and RPM’s. In addition, our engineering team developed a proprietary modification that provides a better combustion seal. To top things off the Alpha Performance Camshafts work in harmony with the cylinder heads to offer you the most useable power throughout the entire power band.

Complete Crate Engine For Ease Of Installation

The Alpha 3.8L Omega-Spec Crate Engine comes complete and sealed from valve covers to oil pan. The engine is timed and the front covers installed so all of the hard work is already done for you making your engine swap a bolt-in affair.

Do it right the first time, order your Alpha 3.8L Crate Engine today!

Click HERE for AMS’ Break In and Warranty Information

THE ULTIMATE IN PERFORMANCE

The goal of AMS is to provide the highest quality, best performing products available.
By utilizing research and development and rigorous testing programs AMS will never compromise the quality or performance of our products.

SHOP PARTS

NOT LEGAL FOR USE ON POLLUTION CONTROLLED MOTOR VEHICLES. THIS PRODUCT IS FOR RACING COMPETITION ONLY AND IS NOT LEGAL FOR USE ON HIGHWAY OR STREET VEHICLES, OR OTHER NON-RACING COMPETITION OFF-ROAD VEHICLES.

Learn More

This policy only applies to installers and/or users who are in the United States, customers who reside in other countries should act in accordance with their local laws and regulations.

Some AMS Performance upgrades may solely be used on vehicles in sanctioned competition which may never be used upon a public road or highway, unless permitted by specific regulatory exemptions (such as a CARB E.O.). For state specific details please visit the following website: http://www.semasan.com/emissions

It is the responsibility of the installer and/or user of the product to ensure that it is used in compliance with all applicable laws and regulations. If a product was purchased in error, do not install and/or use it. The purchaser must arrange to return the product(s) for a full refund.

All performance modifications and installations are at the customer’s own risk. AMS Performance holds no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products.

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