The Problem
In high-horsepower Barra builds, the factory sheetmetal flexplate is a serious liability. Imagine a thin, 2mm stamped steel disc trying to transfer 1000+ horsepower to an 1800kg+ car. Under launch conditions, this causes enormous torsional flex, leading to cracking, shattering, and catastrophic driveline failure.
A standard factory flexplate is only 2mm thick. Our billet replacement is 9mm thick—offering over 4x the material strength to handle the stress of transbrakes and hard launches.
The Atomic Solution
We engineered the ultimate solution: a 9mm thick Billet Flexplate machined from ultra-tough 4340 Chromoly. It features a dual bolt pattern to suit both Ford 4-bolt and Powerglide 3-bolt converters, making it the last flexplate you will ever need.
2. Bulletproof Construction
We don't use stamped steel. We machine these plates from a solid bar of 4340 Chromoly.
- Massive Thickness: At 9mm thick, this plate eliminates the "flex" that kills stock plates, keeping your converter concentric with the crank.
- Lightweight Design: Despite its strength, we machine 40mm lightening holes to reduce rotating mass and promote airflow around the converter.
3. Universal Versatility
Whether you run a BTR, ZF, or a built Powerglide, this plate is ready.
- Dual Bolt Pattern (PCD): Pre-drilled to suit standard Ford 4-bolt converters AND GM/Powerglide 3-bolt converters.
- Perfect Fitment: Designed to match OEM backspacing for seamless installation.
- Premium Hardware: Includes your choice of ARP or Atomic High-Tensile crank bolts, plus essential Nord-Lock washers to prevent loosening under vibration.