23 DEGREE HEADS

Old 01-25-2008, 02:30 PM
  #1  
edbrgolf
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Default 23 DEGREE HEADS

I know that there is 18 and 15 degrees for race engines, but i was trying to find out what a 350 block is and does the diffrent degrees come in on the intake side or the block side. I have a set of patriot heads on a 383 with a air gap rpm intake is this 23 deg. or something else. Has anyone used the patriot heads with 2.05 intake and 1.96 exhaust just wondering if they were any good.
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Old 01-25-2008, 02:40 PM
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johnracer
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The degrees refer to the valve angle in relationship to the bore. Your Patriots are 23 degree. Same as stock. Rolling the valve angles allows staighter ports and better flow....15 & 18 degree heads require special intakes, headers, valvetrain parts, etc but make big power. Esecially on big inch small blocks.
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Old 01-25-2008, 03:05 PM
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