Review on 🚀 Performance Upgrade: Proform 67921 Aluminum Exhaust Header Gasket - Chevy Small Block (Pair) by Maurice Stavros

After installing the header kit and upgraded dual exhaust on my 78ft Vetta, the progressive noise got louder. Knowing that typical exhaust gaskets are prone to catching fire, particularly due to the higher temperature of aftermarket headers/exhausts, I settled on an aluminum gasket kit. The engine was much quieter immediately after installation and the new seals did not show any signs of wear. The installation itself was quite easy, no problems were noticed. Although it was somewhat unclear whether they went to the block with the smooth or perforated side. But I think in the end it really doesn't matter.