The Smart Step-Up
The Atomic 475 Rebuild Kit is the perfect starting point for any performance-minded enthusiast seeking to build a robust and reliable Barra engine without breaking the bank. Engineered as a significant step up from a standard rebuild, this kit provides a rock-solid OEM+ foundation that easily handles moderate boost increases while maintaining factory-like street manners.
Cast doesn't mean weak. By pairing our zero-failure Superleggera Billet Rods with premium Hypatec Cast Pistons, you get a dead-quiet cold start and excellent oil control, while the billet rods absorb the immense torque spikes generated by modern turbochargers. It is the ultimate balance of daily drivability and weekend track capability.
A Complete System
We don't leave your oiling and sealing to chance. The 475 Kit includes our Rebuilt Alloy Oil Pump featuring Billet Gears, ensuring your oil pressure remains stable under load. We also lock down the cylinder head with our 12mm Tool Steel head studs and an MLS-D head gasket, eliminating the risk of head lift at elevated boost levels.