Throwback Thursday: Building A Bulletproof 427-inch LS Monster

Here we are again, the end of another week is getting closer. That’s right, Thursday is casting its ever-growing shadow firmly on our garage floor. With the end of the week announcing its arrival, we know you are planning to work on your project this weekend. Maybe your plans have already been made? If those plans for spending some time in your garage include putting together a monster of an LS engine, you might want to check this out.

In this edition of Throwback Thursday, we’ve opened the Power Automedia vault, and are taking a short hop back to November 2015, to check out: Building A Bulletproof 427 LS With Manley To Make Big Power. This week’s throwback gets-in deep to show you what’s inside this big-power LS engine.

LS engine

The Manley catalog was raided to provide nearly all of the hard parts for this build; from 4.100-inch-stroke forged steel crankshaft, to 4340 forged I-beam connecting rods, to Manley’s Pro Series 2618 alloy pistons. The rotating assembly and many other parts are available to anyone — there are no high-dollar unobtainium parts in this build.

Building an engine capable of supporting big-time power under the thermal load of supercharging is a tall order. Doing so on a car that will see the road daily, only raises the stakes is how Jason Reiss started the article. He’s not kidding. It wasn’t that long ago that one horsepower-per-cubic-inch was considered big time. Now, the Big Three are delivering more than that from the factory.

In the original article, Jason outlines how the project started with an LS9 block and was filled with goodies from Manley and when assembled, created enough horsepower to quell the needs of any horsepower junkie.

The build highlights a lot of simple tips and tricks that you can follow to build your own LS tire-fryer, but you’ll have to check out the original article to get the full download, and I thought; Building A Bulletproof 427 LS With Manley To Make Big Power, would be a great article for this week’s Throwback Thursday.

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About the author

Randy Bolig

Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles.
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