5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Afr and 1.7rr question

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Old 10-05-2006, 10:59 PM
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Asylum839
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Default Afr and 1.7rr question

Hey guys i have a 95 cobra and to my understanding they come stock with 1.7 roller rockers. So if i get a set of 165cc afr heads and use 1.7 RR's will i have any valve to piston issues or anything of that nature??
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Old 10-05-2006, 11:02 PM
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Ninety5five0
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Default RE: Afr and 1.7rr question

Everyone told me the best thing to do is actually check it. But i'm sure there are others on this forum that have afr's and 1.7's, im sure they'll tell you.
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Old 10-05-2006, 11:41 PM
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Asylum839
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Default RE: Afr and 1.7rr question

no one knows ??
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Old 10-06-2006, 12:15 AM
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AdderMk2
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Default RE: Afr and 1.7rr question

you will be fine

AFR165 heads still have a 1.9" valve which clears the stock valve reliefs, if you went with a 2.02 intake valve, you would need to notch the pistons because the reliefe is not wide wnough for the valve, but you are all set with AFR165's

just dont go past .540 lift
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Old 10-06-2006, 12:32 AM
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Asylum839
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Default RE: Afr and 1.7rr question

ok thanks for the great info adder.
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Old 10-06-2006, 02:43 AM
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OnyxCobra
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Default RE: Afr and 1.7rr question

+1 what adder said, I'm doin the AFR 165s and the Steeda #19 cam (.510 lift w/ 1.7rr) and i should have zero problems, but you always should check.
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