Billet Bling: Callies Offers Energy Manufacturing LSX Billet Blocks




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Billet Bling: Callies Offers Energy Manufacturing LSX Billet Blocks

By Brian Wagner July 25, 2019
When you’re looking to add strength and save some weight in an engine, there aren’t many parts that can do both unless you’re talking about billet aluminum. One area of a racecar where billet aluminum can really be beneficial is when it’s used as the material for an engine block. Callies now offers the LS world a billet block produced by Energy Manufacturing, and this block allows users to push their engine combinations harder than ever.

When Callies and Energy got together to design a billet LS engine block they wanted to be sure it would have plenty of strength and durability. They looked at the different block designs available for the LS engine platform and began to create something that would incorporate all the best elements each had to offer. This blank slate approach would ensure whatever was created had plenty of options for different high-performance applications.

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Ben Mens from Energy Manufacturing provides some interesting details about what makes these billet LS blocks so strong.

“The block is based on the GM LSX racing block architecture. We use billet steel main caps, 1/2-inch main studs that are vertical, and two 7/16-inch side bolts in each side which does mimic the architecture of the LS. The camshaft has also been elevated .00388-inch, on our tall deck model which we offer in a 9.75 deck. We also offer a 9.240-inch standard deck with a standard camshaft position.”

If you’re going to build a strong block you need to start with quality material and prepare it correctly. Energy sourced premium billet 6061 aluminum that has been heat-treated to a T6 level and is cryogenically treated to enhance the block’s strength. Each block starts out as a 490-pound hunk of aluminum before it begins the CNC machining process in-house at Energy. The final product is a block that weighs right around 100 pounds with the sleeves, billet main caps, and studs installed.



Energy just doesn’t make a one-size-fits-all billet block, they offer a healthy list of options for end-users. These blocks can be tailor-made to fit a specific application or power-adder.