Big 3 Engine and Transmission

Machines are great, but they don't have eyes.

In Part 3 of 'The Machining Debris Problem: The Invisible Killer,' we’re looking at the step most shops skip to save time: The Manual Scrub.

Even the most expensive industrial spray cabinets can miss microscopic shavings trapped deep inside oil galleries and blind holes. For a high-performance LS or LT build, that’s a death sentence. It only takes one stray piece of metal to wipe out a bearing and turn your investment into a core.

At Big 3 Engine, we don't trust our reputation to a timer on a washer. Every block gets the human touch. Our builders hand-scrub every single passage with specialized brushes and high-pressure solvent. We verify every lifter bore and every oil passage is 100% clear before assembly even begins.

It’s tedious. It’s dirty. And it’s exactly why we can offer a 10-year warranty while the warehouse lines struggle to make it past 12 months. We don’t just build engines; we fix the failures that others leave behind.

Big3Engine.com

Part 3 of 4.

Why does a race engine survive 9,000 RPM while factory units struggle? Above OE Grade Tech for Your Daily Driver Part 30: Oil Galley Efficiency. Factory castings have flash that creates turbulence. Turbulence slows oil flow and causes cavitation: bad news for bearings. We know race-style deburring is a non-negotiable step. By smoothing internal junctions, we ensure high-volume, laminar flow. It’s 'built to last.' Built in-house by real technicians. big3engine.com