Exhaust Manifold Headers for Oldsmobile Cutlass Delta (1965-1974) 350 400 455

Maximize Performance: High-Flow Headers for Your Oldsmobile Cutlass & Delta 350/400/455 (1965-1974)

Who Is This For? For the discerning owner of a 1965-1974 Oldsmobile 98, Cutlass, Delta 88, or Vista Cruiser equipped with the legendary 350, 400, or 455 V8 engine. If you're looking to elevate your classic's power, sound, and overall driving experience, these headers are designed for you.

The Hidden Performance Blocker: Your factory exhaust manifolds were built for compromise, not peak performance. They restrict exhaust gas flow, stifling your engine's horsepower and torque potential, and muting that iconic V8 growl. It's like running a marathon with a hand over your mouth.

The Engineering Solution: Replace those restrictive cast iron manifolds with our premium exhaust headers. Engineered to optimize exhaust scavenging, these headers feature an efficient 8-2 piping design, allowing spent gases to exit the cylinders faster and more efficiently. This translates directly to improved throttle response, significant horsepower gains, and a much more assertive engine note. Crafted with CNC machine flanges and TIG/MIG welded construction, they promise a precise fit and enduring durability. The 3-stage polish finish not only looks sharp but adds an extra layer of protection. Please note, installation instructions are not included; we recommend consulting a shop or factory manual for proper procedure.

The Comparative Edge

• Optimized Flow: 8-2 piping design significantly improves exhaust gas velocity and scavenging, boosting engine efficiency and power output.
• Robust Construction: Built with thick 7/16" head and 3/8" outlet flanges, precision CNC machining, and reinforced TIG/MIG welding for leak-free, long-lasting performance.
• Premium Finish: A brilliant 3-stage polish provides corrosion resistance and a show-quality appearance under the hood.
• Complete Kit: Includes two high-quality exhaust headers along with all necessary gaskets and bolts for a straightforward installation.
• Race-Inspired Design: Features 1.75" primary tubes and a 3.00" outlet size, tailored for optimal performance on these classic Olds V8s.
• No O2 Sensors: Designed for classic applications, these headers feature zero O2 sensor locations, perfect for period-correct builds.

Technical Specifications

Compatibility

Fits:

• Oldsmobile 98 (1965-1974) with 350, 400, or 455 (5.7L, 6.6L, 7.5L) V8 engines
• Oldsmobile Cutlass (1965-1974) with 350, 400, or 455 (5.7L, 6.6L, 7.5L) V8 engines
• Oldsmobile Delta 88 (1965-1974) with 350, 400, or 455 (5.7L, 6.6L, 7.5L) V8 engines
• Oldsmobile Vista Cruiser (1965-1974) with 350, 400, or 455 (5.7L, 6.6L, 7.5L) V8 engines

The Performance Promise

Buy with confidence. Backed by real automotive experts and fast shipping.