Pontiac H/P 1.660 Exhaust Valve

The Pontiac H/P 1.660 Exhaust Valve from FERREA is a precision-engineered component designed for high-performance V8 engine builds and restorations where reliability and durability matter. Built for serious enthusiasts and professional mechanics rebuilding Pontiac V8 engines, this stainless-steel exhaust valve replaces worn or damaged factory valves that compromise combustion efficiency and cylinder sealing. Whether you're restoring a classic muscle car or upgrading an existing engine, choosing quality valve components ensures proper valve train geometry, consistent fuel atomization, and long-term reliability under sustained RPM loads.

This Pontiac H/P 1.660 Exhaust Valve features a 1.660-inch head diameter paired with an 11/32-inch valve stem and measures 4.980 inches in overall length, conforming to OEM specifications for seamless cylinder head integration. The stainless-steel construction resists thermal fatigue, corrosion, and oxidation even at elevated exhaust temperatures, while the 5000 Series design delivers the valve seat contact geometry needed for tight sealing and minimal blowby. FERREA's manufacturing standards ensure dimensional consistency across batches, so replacement valves maintain the precise valve overlap and lift characteristics your engine requires for optimal combustion and scavenging.

Mechanics and engine builders select the Pontiac H/P 1.660 Exhaust Valve when performing top-end rebuilds, valve seat grinding, or complete head machining on Pontiac V8 platforms. Installation requires proper valve seat counterboring and lapping to ensure full contact area; this valve pairs with matching intake valves and hardened seats for balanced performance. Stock, street, and moderate forced-induction applications all benefit from FERREA's quality control and material selection, making this exhaust valve a trusted choice for lasting engine durability and consistent horsepower delivery.