PROMAXX Chevy Heads Now Available From Summit

PROMAXX Chevy Heads Now Available From Summit

Written by  on Thursday, 21 March 2013 16:19

Patriot Performance is now PROMAXX—and still making high quality, affordable performance cylinder heads for first-gen small and big block Chevy.

Summit Racing offers three series of PROMAXX cylinder heads:

Freedom Series Aluminum Heads for Small Block Chevy
These assembled heads feature a choice of 185cc, 190cc, or 225cc intake runners and 64cc or 72cc CNC bowl-blended combustion chambers with a five-angle valve job. Other features include:
• One-piece 2.02 inch intake/1.600 inch stainless steel exhaust valves (225cc heads have 2.08 inch intake valves)
• 1.400 inch valve springs for hydraulic flat tappet cams, rated to .575 inch valve lift
• 3/8 inch screw-in rocker arm studs and guideplates for 5/16 inch diameter pushrods
• Choice of straight or angle plug configuration for 185cc and 190cc heads
PRODUCT LINK:
http://www.summitracing.com/search/brand/promaxx-performance/product-line/promaxx-performance-freedom-series-small-block-chevy-cylinder-heads?autoview=SKU&keyword=PROMAXX

Freedom Series Aluminum Heads for Big Block Chevy
Assembled heads feature 320cc intake runners and 119cc CNC bowl-blended combustion chambers with a five-angle valve job. Other features include:
• One-piece 2.250 inch intake/1.880 inch stainless steel exhaust valves (225cc heads have 2.08 inch intake valves)
• Choice of valve springs rated to .600 inch, .700 inch, or .800 inch valve lift
• 7/16 inch screw-in rocker arm studs and guideplates for 3/8 inch diameter pushrods
• Bare castings also available
PRODUCT LINK: http://www.summitracing.com/search/brand/promaxx-performance/product-line/promaxx-performance-freedom-series-big-block-chevy-cylinder-heads?autoview=SKU&keyword=PROMAXX

 
Vortec Iron Cylinder Heads for Small Block Chevy
These are an affordable power-building alternative to aluminum heads, especially for race classes that require iron heads. Features include:
• 185cc intake runners, 60cc exhaust runners
• 64cc combustion chambers with five-angle valve job
• One-piece 2.02 inch intake/1.600 inch stainless steel exhaust valves
• 1.400 inch valve springs for hydraulic flat tappet cams, rated to .575 inch valve lift
• 3/8 inch screw-in rocker arm studs and guideplates for 5/16 inch diameter pushrods
• Valve cover rail accepts perimeter- or center-bolt valve covers

Summit Racing Equipment
www.SummitRacing.com
1-800-230-3030

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Last modified on Thursday, 21 March 2013 16:58
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