Cylinder Head

Performer Cylinder Head

Performer Cylinder Head; Complete; 300-450 HP; Standard Exh. Port; 54cc Chamber Vol.; 1.94 in. Intake/1.55 in. Exh. Valves; 0.600 in. Max Lift; 1.46 in. V. Springs; Single;

• Cylinder Head Type: Standard
• Emission: Non-Emissions
• Engine Make/Size: Chevy LT1
• Finish: Polished
• Preparation: Bolt On (Not Required)
• Type: Complete
• Usage: Racing
• WARNING CA Proposition 65: Yes
• WARNING CA Proposition 65 Message: WARNING: This product can expose you to Lead; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit www.P65warnings.ca.gov.

• Complete 50-State Street Legal Alum Cylinder Head
• Out-of-the-Box Bolt-On Performance
• Design That Improves Intake Port Alignment
• Outstanding High Performance Street Head
• Provides A Semi-Open Combustion Chamber
• 9.2:1 Compression with Flat Top Pistons
• 8.8:1 Compression With 1987 And Up TBI Dished Pistons
• Match with Edelbrock Multi-Point EFI to Maximize

Cylinder Head Specifications: Combustion chamber volume: 54cc; Intake runner volume: 170cc; Exhaust runner volume: 60cc; Intake valve diameter: 1.94"; Exhaust valve diameter: 1.55"; Valve stem diameter: 11/32"; Valve guides: Maganese Bronze; Deck thickness: 5/8"; Valve spring diameter: 1.46"; Valve spring maximum lift: .600"; Rocker stud: 3/8"; Guideplate: N/A; Pushrod diameter: 5/16"; Valve angle: 23; Exhaust port location: Stock; Spark plug fitment: 14mm x .750 reach, gasket seat. * Designed for 1992-97 LT1 small-block Chevy engines, these Performer cylinder heads deliver 24 horsepower over stock and raise the peak power level by 500 rpm. These heads are designed to accept factory style self-aligning rockers. Performer LT1 cylinder heads are 50-state street legal and accept factory centerbolt valve covers. They feature exhaust ports in the stock location for use with stock or aftermarket exhaust manifolds and headers. Match with RPM Air-Gap intake #7107, throttle body #3809 and camshaft #2108 for the Total Power Package combo. ** Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Match with Edelbrock head gasket sets.

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.