Hooker 8525HKR Small Block Chevy Exhaust Manifolds Rectangular Port

The Hooker 8525HKR Small Block Chevrolet Exhaust Manifolds deliver enhanced performance and a clean, factory-style appearance for your engine build. Engineered specifically for rectangular port heads, these manifolds provide superior airflow compared to stock components while maintaining OEM fitment characteristics.

Key Features:

• Designed for rectangular port cylinder heads on Small Block Chevrolet engines
• Larger 1-5/8" cross-sectional area with 2-1/2" outlets for improved exhaust flow and performance gains
• Constructed from high silicon-molybdenum ductile iron for exceptional high-temperature strength and resistance to oxidation and cracking
• Accommodates both standard straight plug and Vortec straight plug head designs for broad application coverage
• Includes weld-on flanges for simplified custom downpipe installation
• Complete hardware kit included with mounting bolts and gaskets for inlet and outlet flanges
• Available in multiple finishes: natural cast iron, ceramic coated silver, black, or titanium
• Smoother, cleaner appearance than original manifolds while preserving a factory-style aesthetic

These manifolds provide an excellent balance of performance, durability, and appearance for street and mild performance applications. The high-quality ductile iron construction ensures long-lasting reliability under demanding conditions, while the larger internal passages reduce backpressure and unlock additional horsepower. Note that custom downpipes are required for installation.