{"product_id":"ppe-cast-iron-ported-cylinder-head-110100113-2004-5-2010-6-6l-duramax-lly-lbz-lmm","title":"PPE CAST IRON PORTED CYLINDER HEAD 110100113 | 2004.5-2010 6.6L Duramax LLY\/LBZ\/LMM","description":"\u003cp\u003eUpgrade the reliability and performance of your GM 6.6L Duramax LLY, LBZ, or LMM with the PPE 110100113 Cast Iron Ported Cylinder Head. Designed to address the common shortcomings of the factory aluminum cylinder heads, this premium replacement combines heavy-duty cast iron construction with precision CNC porting to deliver exceptional durability, airflow, and long-term performance.\u003c\/p\u003e\n\u003cp\u003eManufactured from specially alloyed gray cast iron, this cylinder head offers superior resistance to heat, fatigue, and thermal cycling. Unlike factory aluminum heads, the PPE cylinder head expands at a similar rate to the cast iron engine block, helping eliminate head gasket scrubbing and reducing the likelihood of blown head gaskets.\u003c\/p\u003e\n\u003cp\u003eEach cylinder head features precision 5-axis CNC-ported intake and exhaust runners designed to improve airflow characteristics. The enhanced port design promotes increased horsepower, improved throttle response, greater fuel efficiency, and reduced turbo lag while maintaining the durability needed for demanding applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEliminates common factory cylinder head cracking and warping concerns\u003c\/li\u003e\n\u003cli\u003eHelps prevent head gasket scrubbing and failure\u003c\/li\u003e\n\u003cli\u003eImproves airflow for increased performance and efficiency\u003c\/li\u003e\n\u003cli\u003eProvides superior durability in towing and performance applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpecially alloyed gray cast iron construction\u003c\/li\u003e\n\u003cli\u003e5-axis CNC-ported intake and exhaust ports\u003c\/li\u003e\n\u003cli\u003eFully nitrided valves for improved wear resistance\u003c\/li\u003e\n\u003cli\u003ePremium 21-4N Stellite-reinforced exhaust valves\u003c\/li\u003e\n\u003cli\u003eIncreased thermal efficiency compared to aluminum heads\u003c\/li\u003e\n\u003cli\u003eHigher fatigue strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eReduced engine noise and vibration\u003c\/li\u003e\n\u003cli\u003eLiquid-cooled cylinder head design\u003c\/li\u003e\n\u003cli\u003eIncludes rocker arm dowels and freeze plugs\u003c\/li\u003e\n\u003cli\u003eReady-to-install configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2004.5–2005 GM 6.6L Duramax LLY\u003c\/li\u003e\n\u003cli\u003e2006–2007 GM 6.6L Duramax LBZ\u003c\/li\u003e\n\u003cli\u003e2007.5–2010 GM 6.6L Duramax LMM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSold individually. Two cylinder heads are required per engine.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":52377776750875,"sku":"110100113","price":1709.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/Screenshot2026-06-19at2.18.52PM.png?v=1781900371","url":"https:\/\/wwmperformance.com\/products\/ppe-cast-iron-ported-cylinder-head-110100113-2004-5-2010-6-6l-duramax-lly-lbz-lmm","provider":"WWM Performance","version":"1.0","type":"link"}