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Ed Rinke Performance

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Aluminum Racing Cylinder Heads

ALUminum Racing Cylinder Heads
The same superior Chevrolet Performance technology that professional
NASCAR and NHRA racers have used to win races for decades is available
for you to use in your racecar. The Chevrolet Performance Aluminum Racing
Cylinder Heads are part of an extensive family of high-performance inlinevalve
heads, designed specifically for race-winning engines.
Chevrolet Performance Aluminum Racing Cylinder Heads start with castings
designed with thicker decks and manifold flange areas. The combustion
chambers are designed for competition and air passages are maximized for
high-velocity airflow. These cylinder heads thrive on high compression and
high rpm. Used in conjunction with optimized short-block, intake and valvetrain
combos, these heads are part of an “instant-on” powerplant – the kind
of engine that will put you in the winner’s circle.
Chevrolet Performance engineers dramatically altered the valve architecture
to improve airflow and maximize efficiency. These aluminum racing cylinder
heads are only available unported, so you must have them custom-ported to
your specific requirements.

Aluminum Racing Head Technical Notes:
• Made of 355-T7 aluminum
• Extra-thick decks for angle milling or heavy flat milling
• Extra port material for professional porting
• Recommended for use with 4.000" to 4.155" cylinder bores
• Revised location angled spark plugs (14mm, 5/8" hex, 3/4" reach,
gasketed plugs)
• Raised and revised location intake and exhaust ports for superior
airflow above 0.600" valve lift
• Modified valve angles (not production 23°)
• Longer-than-stock valves required
• Designed for aftermarket shaft-mount rocker systems
• Perimeter-bolt-pattern-type valve covers required
• Specific 18°/15° intake manifold bolt patterns
• Recommended intake manifolds: P/N 24502481, 24502579 or
24502653 (with valley plate P/N 24502654)
• Intake manifold gasket P/N 10185007