EJ engine closed decking: Stage 1 - Hard Core Racing

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EJ engine closed decking: Stage 1

Stage 1 - 10mm thick inserts (for all EJ cases) for up to 550hp

475 Eur

Closed decking is a process where the top plane of the engine case (the head plane of the
case) is machined so it can accept CNC machined inserts. After this process cylinder walls
are completely supported in the weakest place – at the top, where combustion happens,
and proper support is needed when BANG happens. All the coolant bores that exist in the
head gasket are machined in-cylinder supporting inserts, so engine cooling is not affected.
An extra cooling passage is machined for stage 2 and 3 so the engine coolant flows freely
under the head gasket.

Closed decking is available for all EJ20, EJ22, and EJ25 engines. in three stages:

Stage 1 – 10mm thick inserts (for all EJ cases) for up to 550hp;

Stage 2 – 15mm thick inserts (for all EJ cases) for up to 750hp;

Stage 3 – 25mm middle two inserts + 15mm outer inserts for all Hard Core hp.


Before needed services we agree on all the prices and services need to be done. The invoice is sent after all the work is completed and before the engines are being shipped. Once a payment is recieved, we ship the cases.


Currently, we are offering shipping cases all over Europe and we use courier delivery services from door to door.

To determine the shipping cost of a product, add the product to your shopping cart, and input your shipping address. We will contact you about the final shipping cost and estimated delivery timeframe.

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Company “HCR” has signed an agreement with Investment and Development Agency of Latvia (LIAA) on Incubation support within the framework of the ERDF Project No. “Regional Business. Incubators and Creative Industries Incubator”.
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