By far one of the simplest upgrades you can make to your engine compartment is changing out the old radiator cap with a new chrome plated one. We not only offer chrome OEM radiator caps by General Motors, we also have machined billet aluminum caps manufactured by Billet Specialties that are chrome plated by Advanced Plating. The GM radiator caps are 15-lb. and available in either open or closed configurations. The chrome plated billet aluminum caps are 16-lb., measure 2.5” in diameter with knurled sides, and are offered with a variety of designs machined on top of them. In order to allow for the proper positioning of any machined designs, all billet aluminum caps come unassembled with a Stant brand radiator cap for precision installation.
- Chrome OEM caps by GM
- Machined billet caps by Billet Specialties
- Chrome caps are 15-lb.
- Chrome-plated billet caps are 16-lb.