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We have successfully applied our race-winning experience to the R35 GT-R’s VR38 V-6 to bring you the pinnacle in engine programs. By developing Alpha proprietary engine components we have engineered the strongest, most advanced motor program available for your GT-R along with the world records to back it up.
Description
We have successfully applied our race-winning experience to the R35 GT-R’s VR38 V-6 to bring you the pinnacle in engine programs. By developing Alpha proprietary engine components we have engineered the strongest, most advanced motor program available for your GT-R along with the world records to back it up. When looking for an engine rebuild for your VR38 look no further than AMS Performance.
The Pinnacle VR38 Engine For Upgraded Turbos
By adding a billet stroker crank to our already potent 3.8L VR38 engine we have raised the bar once again. When changing to larger turbos there is always a tradeoff of low end grunt for increased top-end power. To remedy this, our 4.3 liter Stroker Engine increases displacement by 8% which adds horsepower and most importantly asphalt shredding torque. The increased stroke coupled with an elevated compression ratio produces more low end torque which considerably reduces turbo lag and improves boost response. The Alpha 4.3L achieves a 300-500 rpm improvement in turbo spool up time when compared to its 3.8L counterpart! You can now have your cake and eat it too!
Alpha Engineering Provides The Most Fortified Engine Block Available
The Alpha Omega-Spec 4.3L Crate Engine is the strongest, most advanced VR38 engine currently available. Each Alpha Omega-Spec 4.3L Race Engine has been strategically strengthened in multiple ways to support the monstrous power and torque produced by our Alpha Performance twin turbo packages.
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 4.3L 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 stroker crankshaft.
The Perfect Combination for Alpha Power
The Omega-Spec 4.3L 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 4.3L 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 4.3L 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 4.3L Omega-Spec Engine today!
Exclusive Benefits
Vastly improved main bearing life
Improved head gasket sealing
Alpha upper block reinforcement process
Custom Alpha engine gasket set for proper sealing
Timing chain and oiling system modifications for high RPM operation
Alpha engine oil baffle for improved oiling under hard acceleration
At AMS we specialize in automotive performance for Japanese and German turbocharged vehicles. We offer engine computer tuning (calibration), repairs and maintenance and most importantly engine and other driveline modifications.
First and foremost AMS is an engineering company. Unlike other shops our parts are engineered to be the best performing you can buy. Most shops in the industry have a basic understanding of engine performance but at AMS we take it far past that using computer aided designs and mechanical engineers with years of motorsports experience.
AMS and its sister brand Alpha Performance have been at the top of the game for 15 years. From turn-key packages to individual components we can meet and exceed all kinds of performance goals. From drag racing to road racing to spirited driving on the streets, let AMS enhance your driving experience!
Mission Statement
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.
In addition AMS will only provide the finest customer service offering only advice and parts that are in the best interest of the customer.
AMS was built on a foundation of integrity. This is who we are. This is what you can count on.
We offer extreme turbo builds all the way down to simple tuning upgrades.
We carry a line of parts for the following vehicles:
