Rialto, CA — Speedmaster®, manufacturer of innovative performance engine components, introduces the Pontiac 389, 400, 455 Ram Air 230cc 78cc Full CNC Aluminum Bore Cylinder Head in time for the 2023 SEMA Show. Positioned as one of the company’s paramount new products launched this year, this new cylinder head for the Pontiac 389, 400, and 455 engine exemplifies Speedmaster's commitment to both innovation and superior craftsmanship. Engineered on 5-axis CNC machines, to ensure the highest level of precision and enhanced airflow performance from the cylinder head’s Ram Air IV intake and exhaust port shapes to the natural finish that highlights top-tier construction. Product Highlights Include: • Precision Craftsmanship: CNC-machined combustion chamber, intake, and exhaust runners ensure unparalleled accuracy and performance. • Robust Material Selection: Constructed from premium aluminum, offering a perfect balance between weight and strength. • Advanced Port Design: The Ram Air IV intake and exhaust port shapes are engineered to optimize airflow and enhance engine performance. • Comprehensive Specifications: From a combustion chamber volume of 78cc to a 14-degree valve angle, every detail has been finely tuned to meet the demands of modern-day automotive excellence. While the cylinder head is sold bare, Speedmaster offers customization opportunities and provides essential guidelines such as reaming the valve guides to 11/32 inches to accommodate the recommended valves for optimal results. The Speedmaster Pontiac 389, 400, 455 Ram Air CNC Aluminum cylinder head is available with an MSRP of $1,063.80. Speedmaster CEO Jason Kencevski, says, “This new cylinder head embodies Speedmaster's pursuit of bringing premium, yet accessible performance products to the automotive community. We look forward to a great reception when we introduce it at this year’s SEMA Show.” For more information about Speedmaster’s Pontiac 389, 400, 455 Ram Air 230cc 78cc Full CNC Aluminium Bare Cylinder Head, visit Speedmaster at one of two locations at the 2023 SEMA Show. Speedmaster’s outside booth is located at #22753 in the Silver Lot, and Speedmaster’s gallery booth is in Racing and Performance located in Central Hall at booth #81020. For more product and company information visit www.speedmaster79.com, email info@speedmaster79.com, or call (909) 605-1123. For more information about Speedmaster, view this video. About Speedmaster® In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing, and racing high-performance engine parts. Over the years, the company has grown into a worldwide high-performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain that entails more than 400+ people across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster® which has distribution centers and offices in Sydney, Los Angeles, and Shanghai. Press Release Type: Product Company: Speedmaster Booth #: 81020 Show Categories: Hot Rod Alley Racing & Performance Media Contact Name: Leslie Allen Media Contact Email: leslie.allen@martincoadvertising.com Media Contact Phone: 615.429.7965 Photo Gallery: 102821