Over the last few months I have been looking at internal engine upgrades for the 4B11 evo X motor. We knew to push the limits and be reliable with these new aluminum blocks we’d have to look into sleeving. I contacted our friends at ERl, who are pioneers in the sleeving industry. From upgrading Honda blocks to tricked out tall deck LS1’s I knew these were the guys I wanted to work with. Starting from a brand new OEM block we started machining away the OEM cylinder liners. During the machining process measurements were taken to verify we weren’t disrupting the structure of the 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. This is where ERL can work their magic. ERL then installed proprietary ductile iron sleeves which are pressed in and sit in the machined step so they will not sink during engine operation. Once in place the new sleeves are machined flush or in our case a few thousands above the rest of the deck surface. This is similar to an o-ring and will help increase the clamping force on the head gasket. Each block then receives final bore sizing and cross hatching. Next we install AMS spec main studs and align hone the main journals. This is done to 100% verify that there was no movement in the block during any of the other machining processes. Now I’m ready for the internals!! Here are some pics of the build so far.

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.

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On all orders over $199.99 in the lower 48.*Freight items not included*

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.