Main Cap Tech One of the main problems with blocks that need to be align-bored is the lack of squish between the main cap and the block. What I am referring to is the interference fit between the cap and main register that holds the cap in alignment, and is the reason...

REMOVE THE WEB We have noticed through the years that many previously bored blocks come into our shop that have not had the web at the bottom of the cylinders relieved even with the bottom of the cylinders. Depending upon the bore’s oversize this can be a potential...

CAMSHAFT BEARING FUNDAMENTALS Camshaft bearings are more or less taken for granted. We knock out the worn pieces, press in a new set and assume everything will end up the same as it originally was. This is intended to explain why this assumption is not necessarily...

CYLINDER LINER CAVITATION EROSION Cavitation erosion is often found in diesel engines on the exterior walls of wet cylinder liners. The amount of erosion and decay will vary from engine to engine and may also vary from cylinder to cylinder. Vertical strips or patches...

CYLINDER SUPPORT Honing motorcycle or power sport cylinders can be difficult. The thin bottom portion of the cylinder often protrudes 1”-3” below the cylinder assembly and if this thin/bottom portion of the cylinder is not supported during the honing process, the hone...

TORQUE PLATE HONING GM LS-SERIES ENGINES We have found that due to the length of the head bolts and the fact that they finish approximately 1-1/2 inches from the mains, considerable bore distortion will occur if torque plates are not used when finish honing the GM LS...