{"product_id":"edelbrock-cylinder-head-performer-jeep-4-0l-i6-complete","title":"Edelbrock Performer Cylinder Head (4.0L): Jeep Wrangler Unlimited JL 2018-2026","description":"\u003ch1\u003eEdelbrock Performer Cylinder Head\u003c\/h1\u003e\n\u003ch2\u003e2018–2026 Jeep Wrangler Unlimited JL 4.0L Inline Six\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePart #:\u003c\/strong\u003e 50169\u003c\/p\u003e\n\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Edelbrock Performer Cylinder Head #50169 is a precision-engineered performance upgrade designed specifically for the 4.0L inline six-cylinder engine found in the 2018–2026 Jeep Wrangler Unlimited JL. This bolt-on cylinder head enhances engine breathing with improved intake and exhaust port flow, modern combustion chamber design, and optimized valve geometry. It is ideal for Jeep enthusiasts looking to increase power and efficiency while maintaining compatibility with many factory components and accessories.\u003c\/p\u003e\n\u003cp\u003eBuilt to deliver reliable performance gains without extensive modifications, this cylinder head retains the stock valve angle, pushrod length, and valve cover bolt pattern. It offers a direct replacement solution that improves airflow dynamics and durability, making it a smart upgrade for daily drivers and off-road adventurers alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cp\u003eThe Edelbrock Performer Cylinder Head combines advanced engineering with practical design features to enhance your Jeep’s 4.0L engine performance:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproved intake and exhaust port flow with a modern combustion chamber design for better efficiency\u003c\/li\u003e\n  \u003cli\u003eBack cut and swirl polished valves to maximize airflow and combustion quality\u003c\/li\u003e\n  \u003cli\u003eRetains stock valve angle, pushrod length, and valve cover bolt pattern for seamless compatibility\u003c\/li\u003e\n  \u003cli\u003eLarger, reinforced rocker bosses for increased strength at high RPM\u003c\/li\u003e\n  \u003cli\u003eHeli-Coil threaded inserts in intake manifold bolt holes for added durability\u003c\/li\u003e\n  \u003cli\u003e3\/4\" deck thickness throughout the head to promote stiffness and long-term reliability\u003c\/li\u003e\n  \u003cli\u003eMachined to accept both distributor and coil pack ignition systems\u003c\/li\u003e\n  \u003cli\u003eOptimized port locations and sizes based on 1991–2006 intake and 1991–1998 exhaust manifold designs\u003c\/li\u003e\n  \u003cli\u003eCompatible with aftermarket exhaust headers; requires headers for 1999–2006 exhaust manifold replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Design\u003c\/h3\u003e\n\u003cp\u003eThe Performer Cylinder Head is crafted from high-quality aluminum alloy to provide a lightweight yet durable solution for your Jeep’s 4.0L engine. Its precision CNC-machined surfaces ensure a perfect fit and optimal sealing. The reinforced rocker bosses and Heli-Coil inserts enhance structural integrity, allowing the head to withstand the stresses of high-performance operation. The modern combustion chamber and polished valves improve combustion efficiency, contributing to better throttle response and power delivery.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis cylinder head is designed as a direct bolt-on upgrade for the 2018–2026 Jeep Wrangler Unlimited JL equipped with the 4.0L inline six engine. It maintains the factory valve angle and pushrod length, allowing use with stock valve covers and many off-the-shelf accessories. Installation requires using a 1991–2006 intake manifold and a 1991–1998 exhaust manifold or compatible aftermarket headers. Note that this head is not compatible with 1999–2006 OEM exhaust manifolds, so aftermarket headers must be used in those cases. Always verify header compatibility with the manufacturer before installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEdelbrock Performer Cylinder Head #50169\u003c\/li\u003e\n  \u003cli\u003ePre-installed valves with back cut and swirl polish\u003c\/li\u003e\n  \u003cli\u003eHeli-Coil threaded inserts in intake manifold bolt holes\u003c\/li\u003e\n  \u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cp\u003eThis cylinder head is perfect for Jeep Wrangler Unlimited JL owners seeking a reliable, bolt-on performance upgrade for their 4.0L inline six engine. It suits enthusiasts who want improved airflow, durability, and power without extensive engine modifications. Whether you’re upgrading for street performance, off-road capability, or a combination of both, the Edelbrock Performer Cylinder Head delivers enhanced engine efficiency and strength.\u003c\/p\u003e","brand":"Edelbrock","offers":[{"title":"Default Title","offer_id":47537554981076,"sku":"50169","price":1933.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0006559_4a7a0f8e939e70254371c5a4f9662a6c_096739dd-afe6-4743-af21-d033919f1ccc.webp?v=1771672484","url":"https:\/\/fasthemis.com\/products\/edelbrock-cylinder-head-performer-jeep-4-0l-i6-complete","provider":"FastHemis","version":"1.0","type":"link"}