Mocom Racing - Fast road & trackday specialists

 

Mocom Racing - Fast road & trackday specialists
Mocom Racing - Fast road & trackday specialists
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Tuesday 24 October 2017  
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Mocom Racing EJ25 cylinder block liner supporting dowels
 
EJ25 cylinder block liner supporting dowels
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 Product Prices:
Dowels installed and block halves refaced 329.99
Dowels installed, block halves refaced and all 4 cylinders honed to match your pistons 579.99
Dowels installed, block halves refaced and all 4 cylinders honed to match your pistons (oversize) 629.99
 
 
Product Information:
8 dowels are installed into each block half casing vastly improving the support of the cylinder liner reducing it's distortion during the combustion process. Additional support to this area can decrease blow-by and increase head gasket service life.

A CNC milling machine ensures that each dowel position is bored with total precision and our evolution for 2012 see's a number of differing size bores cut, minimising protrusion into the liners support - excessive protrusion into this support area can cause failure as we have seen from the number of failed blocks we have experienced where cracks in the liner have been found adjacent to where the standard relief is located for the block case fasteners.
The dowels are then individually machined to achieve the desired fit for each dowel location then pressed into place. Once all 16 dowel's have been installed, the deck faces are refaced ready for the build process.

Please note - block's must be honed prior to installing any piston's and we strongly recommend the use of torque plates with the two block half's assembled whilst carrying out any boring or honing work.
 
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Mocom Racing - Fast road & trackday specialists