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Buy 3 Tires, Get 4th Tire Free Instantly
Buy 3 Tires, Get 4th Tire Free Instantly. Receive a discount equal to the price of a single tire when four tires are added to the cart. Valid on select in stock tires only. Those tires for which discount is available will be identified in search results & product detail pages. All other tires and special order tires are excluded from this offer. Valid when scheduled for installation on and installation is completed between 6/26/17 through 9/30/17.

Edelbrock LS1 Pro-Port Raw - Cylinder Head 20034199
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  • Part #: 770469|
  • SKU: 20034199

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    • Designed To Maximize Potential Of GM LSX Block
    • Compatible w/All Previous Versions Of Engine

Edelbrock LS1 Pro-Port Raw - Cylinder Head

This head is designed to maximize the potential of GMS race oriented LSX block. it is also compatible with all previous versions of the engine. The true canted valve design offers the utmost in port flow and combustion efficiency possible with a two valve design. The head uses the GM SB2 valve cover footprint required by the added width of the canted valve layout. The stock exhaust bolt pattern is retained. Like all Edelbrock Pro-Port Raw heads, they will require professional preparation, including CNC porting to the port design of choice. Valve guides are included but not installed. This head has been HIP processed to increase density and provide the heads with extreme durability.
  • Designed To Maximize Potential Of GM LSX Block
  • Compatible w/All Previous Versions Of Engine
  • Offers Utmost In Port Flow/Combustion Efficiency
  • Uses GM SB2 Valve Cover Footprint
  • Stock Exhaust Bolt Pattern Is Retained
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.


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