AMS EVO X Sleeved Cylinder block

AMS is proud to announce the release of our new engine program for the EVO X. At the core of this program is our new iron ductile sleeved 4B11 shortblock. In conjunction with ERL PERFORMANCE we are now able to provide a much stronger building block for those looking to run some serious power through the 4B11.

Each AMS block starts with a stock 4B11 core. First the block is machined down until the OEM cylinder liners are no more. During this process precise measurements are taken to ensure that there is no structural disruption of the cylinder block. After removing all of the necessary material and machining a step at the top of the bore a final inspection is done to ensure no block distortion. From here ERL then installs proprietary ductile iron sleeves. The sleeves are pressed into the block to sit on top of the machined step. This ensures they will not sink during engine operation. Once in place the new sleeves are machined a few thousands above the rest of the deck surface. This acts much in the way an O-ring does on a closed deck block and allows for a tighter sealing surface between the block, head gasket and head. From here each block is cross hatched and gets its customer chosen final bore size. One of the last steps involves installing a set of AMS spec main studs and align honing the main journals to allow for perfect fitment. Align honing is crucial as it ensures everything lines up correctly even after the machining process.

As you can see it’s a pretty involved process but when it’s all said and done you have yourself a pretty stout shortblock capable of taking a great deal of HP.

The cost for this service is $1895.00 and it gets you everything you see above.
If you do not wish to send in a core to have machined then there will be an additional $1534.00 for a new OEM 4B11 block. You are also given the option of choosing any bore size between 86mm and 88mm based on your needs.

We will be offering built short blocks in the future but for those Do-It-Yourself guys out there we thought it would be a beneficial to offer the possibility of choosing your own internals.

Please feel free to ask any questions that you may have. Our engine builder Tim will be monitoring this thread to field any questions on this particular part. Thank you and enjoy the pictures!

Eric

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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.

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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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