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    This is the most common machine work done when upgrading your internals.


    Our boring process is done on a 3-axis CNC machine ensuring bores are on center. From there it goes to the honing machine. We have the latest Sunnen SV-10 cylinder hone with diamond tooling. This is for the ultimate in cylinder finishing.

    The bore option asks how much bigger do you want to go over your current bore size.


    Aluminum blocks are surfaced using a PCD (poly-crystalline diamond) tool for the ultimate finish.  On iron blocks, we use CBN (cubic boron nitride) for the best finish.

    For the surfacing option, select what type of block style.  Opposed style requires more setup since each half has to be decked.

    Hone with Torque Plate:

    We make all of our torque plates for just about every block we work on.  Using a torque plate simulates a cylinder head being bolted on during the honing process.  When the motor is actually put back together, the cylinder is as true as it was while in the honing machine.

    Sand Blast Block:

    Since these blocks can be over 20 years old, they may start corroding. Sand blasting the block will get the corrosion/debris off, bring a uniform satin aluminum color to the block and give it an overall better look. 

    Line Bore Block:

    You get a choice of how we will address the line bore (where the crank sits) of the block. If you plan to use the stock main bolts, then none would be your choice. If you want upgraded hardware, then select the ARP Main Studs. This will include the main studs and line boring of the block.

    Our line boring starts with a simple cap grinding. From there it goes into our line boring machine. With our custom tooling, we can bore the main journals within the factory specifications with ease.