PPE Upgraded Cast Iron Cylinder Heads For 11-16 Chevrolet/GMC 6.6L LML Duramax

Description

Powered by Frooition Store Home About Contact Customer Feedback View All Items AirDog Baja Designs Diode Dynamics Edge Products FASS Fuel Systems Fleece Flowmaster Ford Performance Holley HSP Diesel Injen KC Turbos Kooks Kryptonite OEM Ford PRP Rudy's Performance Parts S&S Diesel Motorsport Strictly Diesel PPE Upgraded Cast Iron Cylinder Heads For 11-16 Chevrolet/GMC 6.6L LML Duramax PPE Upgraded Cast Iron Cylinder Heads For 11-16 Chevrolet/GMC 6.6L LML Duramax Item Description The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets. The aluminum cylinder heads are also prone to warping, melting, and/or cracking in high-performance applications where excessive heat is introduced. PPE's new Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns. Cast from high-quality alloyed gray iron, the PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance, which prolongs the cylinder head's lifespan significantly. PPE Cylinder Head also shares the same heat expansion rate as the stock cast-iron cylinder block - no more blown head gaskets. Each head comes complete with upgraded valve train components. All valves are made of superior materials and fully nitridated. The tapered valve springs' higher spring rate and lighter retainers/locators enable faster response during higher RPMs and eliminate valve float. Powder metal valve seats provide superior wear and heat resistance. The denser and stiffer material properties from the cast-iron construction also significantly reduce engine clatter. Whether you have a damaged aluminum cylinder head or a desire for better reliability and longevity on your Duramax engine, the PPE Cast Iron Cylinder Head is undoubtedly the best choice. Features: PPE's new Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine eliminates any head gasket or cracking concerns Cast from high-quality alloyed gray iron PPE Cylinder Head offers elevated fatigue strength, heat, and creep resistance shares the same heat expansion rate as the stock cast-iron cylinder block no more blown head gaskets comes complete with upgraded valve train components All valves are made of superior materials and fully nitridated The tapered valve springs' higher spring rate and lighter retainers/locators enable faster response during higher RPMs and eliminate valve float Fitment: 2011-2016 GM 2500/3500 6.6L LML Duramax Diesel Included: (2) Cast Iron Cylinder Heads Note: Direct Replacement The valve seats of the PPE Heavy Cast Iron Cylinder Heads are installed with an interference that maximizes the durability and lifespan of the cylinder heads. Such interference might not be optimal for extreme-performance applications where a significant amount of heat is created. For those applications, PPE suggests that the exhaust valve seats be replaced with higher interference (+0.006'' to +0.008'') oversized exhaust valve seats (Nominal size 34mm) About Us About Us Payment Shipping Feedback Returns About Us Rudy's Performance Parts was founded in 2008 and prides itself in being the industry leader in automotive performance and accessories. Rudy's carries a wide variety of performance, suspension, exterior and interior upgrades! Whether you're looking for a minor boost in performance, all-out drag racing and sled pulling power or a suspension upgrade to clear bigger wheels and tires, Rudy's has you covered! Known for the best customer service and pricing in the industry, there is no question that you've found your one stop shop for all of your automotive upgrades! Payment Payment Rudy's Performance Parts accepts PayPal, Visa, MasterCard, Discover and American Express as forms of payment. Shipping Shipping All orders placed Monday-Friday before 2:00 PM EST will be shipped the same day via UPS Ground, FedEx or USPS as long as the product is not on back-order. Tracking information will be automatically uploaded to eBay when the item has shipped. The address on your PayPal account MUST be verified. Additional shipping charges may apply to Alaska, Hawaii, Puerto Rico and Canada. Please message us on eBay if you need to inquire about expedited shipping. Rudy's Performance Parts does NOT ship to international or PO Box addresses. Should you purchase an item from Rudy's Performance Parts using an international or PO Box address, Rudy's Performance Parts reserves the right to cancel and fully refund your order. ALL programmers bought from Rudy's Performance Parts will be sent with signature confirmation and any purchases over $500.00 may also be sent with signature confirmation. Upon delivery, if no one is available to sign for the product, the shipper (UPS, FedEx, USPS, etc.) may attempt to deliver the merchandise another day OR hold it at a local hub for customer pickup. Rudy's Performance Parts is NOT responsible for any packages that are damaged from shipping. ALL packages should be inspected for damage at the time of delivery. If you receive a damaged package, Rudy's Performance Parts will open a damage claim with the shipper and will refund or replace your product once the claim has been complete. Rudy's Performance Parts ships products from multiple warehouses across the country in order to get your products to you the quickest way possible. Your order will ship from the nearest warehouse that has the product in stock. Please note that your order may come in multiple shipments/packages and your shipments/packages may arrive at different times. Feedback Feedback Here at Rudy's Performance Parts we are committed to customer satisfaction. If you are satisfied with your order, please leave us 100% positive feedback as we will do the same for you. If for any reason you are not satisfied with your order or have any problems at all, PLEASE call or email us and we will do everything we can to resolve the issue. We value your business and we are not satisfied until you are. Returns Returns All of our parts and accessories are returnable and refundable. You MUST contact us within 30 days of the shipment date in order for us to accept a return. The item in which you are returning MUST be unused, uninstalled, in the original condition, and in the original packaging. To begin the return process you MUST contact us to obtain an RA number and RA form (if applicable) prior to sending the item back. Returns will be jeopardized at the customer?s expense if they are sent back without a return authorization number. All returned items are subject to a restocking fee of up to 20%. Labor, installation, surcharges or any other applicable fees from the original purchase are non-refundable. If you are returning an item due to an error caused by Rudy's Performance Parts or its business partners (i.e., damaged or defective items, incorrect part shipped, etc.), we will cover all freight charges on the replacement items. We will not be able to send out a replacement part without payment. You are welcome to pay for a replacement item and then receive a refund when the original item is received back, otherwise, we won't be able to send a replacement until the original item is back. If you are sending an item back, we recommend using a service with tracking and signature confirmation. Refunds will be credited back using the method you used to initially pay for the item less any applicable restocking fees. Refunds will be credited within 7-10 business days after the item has been received back to our warehouse and inspected. If you have any questions or concerns regarding the return of an item please feel free to contact our Returns Department through eBay. Rudy's Performance Parts was founded in 2008 and prides itself in being the industry leader in automotive performance and accessories. Rudy's carries a wide variety of performance, suspension, exterior and interior upgrades! Whether you're looking for a minor boost in performance, all-out drag racing and sled pulling power or a suspension upgrade to clear bigger wheels and tires, Rudy's has you covered! Known for the best customer service and pricing in the industry, there is no question that you've found your one stop shop for all of your automotive upgrades! View All Items RELATED PRODUCTS More Items! 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