Having An Engine Block Machined For A Build

There are countless engine combinations that an enthusiast can build. But every one of them has the same thing in common, they require an engine block. It doesn’t matter if you’re using an engine block that came out of a vehicle, a fresh OEM block, or an aftermarket block, they all need prep work. We talk with Jack McInnis from World Products to learn the advantages of aftermarket blocks, and what goes into preparing an engine block for a build.

Advantages Of Aftermarket Blocks

OEM blocks have come a long way and modern blocks can hold a lot of horsepower. That said, these blocks are still mass-produced, and are limited to how much horsepower they can deal with before they fail. An OEM block is manufactured in the most efficient and cost-effective way possible, so there are rarely any running changes made to increase their strength or the amount of horsepower they can handle.

Now, aftermarket blocks are a whole different story. These blocks are designed to deal with more horsepower than their OEM cousins.

“Years of racing and hot-rodding experience have done a good job of demonstrating where the weak points are in OEM blocks when used for high-performance applications. Proper high-performance aftermarket blocks are engineered and built to eliminate those weak points. These blocks also add new features which are beneficial to racers and engine builders,” McInnis says.

There’s significantly less machine work required to get an aftermarket block ready. – Jack McInnis

If you’re thinking about investing in an aftermarket block instead of using an OEM block but are questioning the cost, you need to look at the value an aftermarket block provides. There are a lot of OEM blocks still available for you to use, but it’s getting harder to find blocks that are in usable condition. There’s no telling how many times a block has been worked over unless you have the right…