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What heads am I supposed to have?

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Old 06-03-2008, 10:24 PM
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Merlinhaggard
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Default What heads am I supposed to have?

I have a 68 427/390...

Am I supposed to have 3931063 aluminum rectangle heads?

Can anyone tell me about compression etc..
Old 06-04-2008, 01:07 AM
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RIJVETTES
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According to the Black Book, the 68 427 ci, 390 hp and 400hp engine had heads no. 3917215. Your L36 was rated at 10.25:1 cr, with 7717 mad that year. Luck you! Jim
Old 06-04-2008, 11:21 AM
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Merlinhaggard
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Originally Posted by RIJVETTES
According to the Black Book, the 68 427 ci, 390 hp and 400hp engine had heads no. 3917215. Your L36 was rated at 10.25:1 cr, with 7717 mad that year. Luck you! Jim
Does this sound right to others?. Cast Iron oval port...
Old 06-04-2008, 06:39 PM
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BIZUMP ttt
Old 06-04-2008, 09:21 PM
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