Edelbrock 79549 E-CNC 355 Cylinder Head

Cylinder Head E-CNC 355 Cylinder Head E-CNC 355 Cylinder Head; Bare; 354cc-334cc/129cc Intake/Exh. Port Vol.; 550-750HP; Rect. Intake Port; Std. Exh. Port; 118cc ChamberVol.; 2.30Intake/1.88in. Exh. V.Sizes; Single; SPECIFICATIONS: Engine Make/Size: Chevy Big Block (396-502) Usage: Competition Cylinder Head Type: Rectangular Port Type: Bare Preparation: Requires Professional Preparation (Bare) Emission: Non-Emissions Finish: Cast Steel FEATURES: CNC Ported To Achieve Optimal Air Flow For Maximum Horsepower And Torque For High Performance Street/Light Duty Racing High-Quality Valve Springs Modified To Increase Fuel Efficiency And Maximum Power Made In The U.S.A. Cylinder Head Specifications: Combustion chamber volume: 110cc / 118cc; Intake runner volume: 348cc (lh) / 356cc (rh) - #79539, 354cc (lh) / 334cc (rh) - #79559; Exhaust runner volume: 145cc / 129cc; Intake valve diameter: 2.300"; Exhaust valve diameter: 1.88"; Valve stem diameter: 11/32"; Valve guides: Manganese bronze; Deck thickness: 5/8"; Valve spring diameter: 1.55"; Valve spring maximum lift: .700"; Rocker stud: 7/16"; Guideplate: N/A; Pushrod diameter: 3/8"; Valve angle: 24.5� x 4.4� (In) / 15.5� x 4.2� (Ex); Exhaust port location: +.200"; Spark plug fitment: 14mm x 3/4 reach, gasket seat. Match with Edelbrock head gasket sets . Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. When you design and sell the best-engineered performance products in the world, you have to have a rigorous testing program. Why? Without adequate testing, there's no way to stand behind your product with confidence. That's why every product we design and sell at Edelbrock is tested and approved by Edelbrock engineers in a real world environment on state-of-the-art equipment. Our three Super Flow computerized engine dynos are capable of measuring 11 separate engine variables up to speeds of 12,000 rpm. For 2007, we added a new Super Flow SF902 engine dyno. It's fully automated and programmable to simulate various driving situations, and is equipped with WinDyn software for the very latest in testing equipment. For real-world tuning, there's our Super Flow model SF-840 eddy-current chassis dyno that can handle up to 1,000 hp at the wheels and speeds of 200 mph. When all testing is completed, the results evaluated, and the part has passed all performance criteria, then, and only then, is the product deemed ready for production. These precise testing procedures are applied to the entire Edelbrock line for performance that's guaranteed. Edelbrock test vehicles are driven by Edelbrock engineers and employees to get a "real world" feeling for the performance improvements. Our products are also tested and used by professional race car teams and drivers. Working with these talented individuals is just another extension of our research and development process so when we say "proven performance" we really mean it! Top racing teams in all forms of motorsports rely on Edelbrock to produce parts that they can count on to win races and championships. Further underscoring our commitment to the racing community, Edelbrock is the only aftermarket intake manifold manufacturer licensed by NASCAR.

Edelbrock 79549 NEW