PRO-X LS3 CYLINDER HEADS. CBM Motorsports Pro-X CNC ported aluminum cylinder heads will unleash the horsepower, torque and performance that your LS engine is capable of. CBM Motorsports Pro-X 6 bolt cylinder heads for LS style engines are. Designed for 4.065 or larger bores and LS3/L92 intake ports. They also feature a raised rocker rail for improved rocker arm/valve cover clearance and are capable of making well over 1000hp. We 100% CNC port all intake and exhaust runners, blend the bowls and match the ports. The combustion chambers and ports have been carefully designed to achieve the very best combination of high flow capabilities along with outstanding port velocity. An improved deck thickness provides greater forced induction durability and reliability. REV stainless steel valves, Manley springs, retainers, locator’s and locks. CBM/Jesel Pro Series Rocker Arms make CBM Motorsports Pro-X heads for the LS a winning combination and ready to race. Manley springs, retainers, locator’s and locks. CBM/Jesel Pro Series Rocker Arms. Cylinder heads come paired, fully assembled and ready to install. Combustion Chamber Volume (cc). Intake Runner Volume (cc). Exhaust Runner Volume (cc). Intake Valve Diameter (in). Exhaust Valve Diameter (in). Maximum Valve Lift (in). Valve Stem Seals Included. Rocker Arm Studs Included. Rocker Arm Nuts Included. Accessory Bolt Holes Drilled. Stainless Steel Intake Valves. Head Diameter: 2.220. O/A Length: 5.450. Underhead Angle / Radius: 22° x 1/2. Top of Head: 45° Dish. Groove Type: Bead Roll. Stainless Steel Exhaust Valves. Head Diameter: 1.600. Underhead Angle / Radius: 10° x 3/8. Manley Professional Valve Springs. Coil Bind: 1.190. Valve Spring Diameter: 1.550. Dimension A: 1.500. Dimension B: 1.105. Valve Spring Locator’s. Locator OD: 1.535. Manley Machined Valve Locks. Valve Stem Diameter: 0.311. Groove Type: Bead Loc. Jesel Pro Series Rocker Arms. Rocker Ratio: 1.75/1.75. 1.650 Pivot BB Rocker. We are CBM Motorsports based out of Colton, CA, USA.. We specialize in racing and high performance LS engines and parts for off road vehicles, hot rods, muscle cars, drag cars, rock crawlers and watercraft. We manufacture and stock hundreds of specialty parts and accessories for the Chevrolet LS and Ecotec series engine. If you are looking to gain more horsepower out of your current set up or want to build an engine from the ground up look no further. Our team includes GM world-class certified technicians, ASE certified technicians and MECP certified professionals. We offer chassis dyno tuning services, LS engine repair, LS engine swaps, and custom fabrication. If you are local, please come visit our showroom and see what the leading LS engine builders in the world has to offer. If you have any questions, comments, or concerns about a product we sell or services we provide, please send us a message. We leave feedback automatically once the item has been paid for. We consider our feedback VERY IMPORTANT. Let us know if there was a mistake made during your order and we will do our best to resolve the issue. Send us a message. We make sure every customer is 100% satisfied no matter the size of the order. Please understand we are a business and appreciate every one of our customers. Custom-made parts may take longer. Please understand Saturday, Sunday & Holidays. If you would like your package. Please let us know and we would be happy to add it to the quote. UPS will not deliver to P. If you are not satisfied with your part or accessory for any reason, you may return it within 30 days of receipt of your order. You may return products that. Do not have missing parts. Are in their original packaging. Are not damaged, previously installed, or used. Were not custom built, painted, or modified for your application. The item “CBM MOTORSPORTS PRO-X CNC PORTED 6 BOLT LS3 LS7 CYLINDER HEADS JESEL ROCKERS” is in sale since Wednesday, August 7, 2019. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts”. The seller is “custombuiltmotors” and is located in Colton, California. This item can be shipped worldwide.
- Country of Manufacture: United States
- Part Brand: CBM PRO-X
- OE Spec or Performance/Custom: Performance/Custom
- Core Charge: None
- Type: Small Block Chevy
- Manufacturer Part Number: CBM-PROX-C-WR-6
- Brand: CBM MOTORSPORTS
- Warranty: 90 Day