LS3/L99 Cylinder Heads (set of 2) - Ported, Polished, 5-Angle Valve Job @ Phastek

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LS3/L99 Cylinder Heads (set of 2) - Ported, Polished, 5-Angle Valve Job - 2010 Camaro SS


LS3/L99 2010 Camaro SS Cylinder Heads - Ported, Polished, 5-Angle Valve Job

These Ported & Polished Cylinder Heads feature Competition 5-Angle Valve Jobs, Honed Valve Guides, and Back-Cut Valves. They come Flow Tested and Assembled, ready to bolt on. (You can also opt to have the heads Milled to your specs if you like, at no additional charge, up to .030 (Thirty Thousandths). If we have not already spoken with you about your particular build, we will contact you when you place your order)

Upgraded Behive Valve Springs are included

Intake & Exhaust Port Work:

Bumps & Uneven Spots Removed
Short Turns Layed Back and Blended in
Throat Areas Opened and Smoothed
Valve Guides Smoothed and Narrowed
Cross-Sections Smoothed and Resized

Combustion Chamber Work:

Polished and Blended with Valve Job work
Reshaped & Smoothed Spark Plug Bosses for increased flow and less turbulance

* Core exchanges needed for Cylinder Head work

** Flow Numbers: at .500 lift: About 345-350 CFM (Stock LS3 Heads flow 300-305 CFM)

*** Horsepower Increase: 25-65 rear-wheel horsepower can be expected (on an LS3 6-speed) (horsepower increases range for different combinations: cold ari intakes, long tube headers, camshafts, superchargers, turbochargers, and custom tunes)

**** Camshaft Upgrades recomended for best results





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