Why Dowel Your Crank?
Tired of loose flexplates and sheared crank bolts? In high-torque Barra builds, the factory friction washer and bolts often aren't enough to hold the flexplate stationary against the crank flange. The long stroke of the Barra makes big power but also shakes the flex plate at a very high frequency trying to break it loose. Installing dowels helps the flexplate and bolts resist this shaking caused by the engine harmonics and other powertrain dynamics.
The dowelling jig allows in-car drilling. Until now, dowelling a crank usually meant pulling the engine out. The Atomic Dowelling Jig bolts directly to the rear crank flange, allowing you to precision-drill dowel holes with the engine still in the car. It's a game-changer for workshop efficiency and DIY budgets.
The Atomic Solution
Designed for perfect alignment and repeatable results, this kit includes everything you need to lock your driveline down. We use a Hardened Steel Jig with a Super-Hardened Pilot Sleeve to guide our Titanium-coated bits through the tough Barra crank steel. No wandering, no oval holes—just dead straight dowels every time.
2. The "All-In-One" Workshop Kit
We built this to be a lifetime tool for workshops and serious enthusiasts.
- 3-Step Precision Drilling: Includes 3x Titanium-coated bits: 6mm (Pilot), 9.8mm (Intermediate), and 25/64" (Final) for a perfect press fit.
- Reusable Design: The jig and sleeve are hardened to last for multiple engines. Drill bits and dowels are replaceable consumables.
- Complete Package: Comes in a heavy-duty foam-padded case with 12x mounting bolts and 6x precision dowels—enough for 2 engines right out of the box.