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.

valve clearance

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Old 03-03-2004, 12:36 AM
  #1  
spideys85gt
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Default valve clearance

does anyone know how much life i can put on a stock 302 and stock pistons before my valaves start hitting the pistons? right now i'm looking at a.550 lift right now and dont want to ruin anything.
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Old 03-03-2004, 12:56 AM
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86lx
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Default RE: valve clearance

I ran a x cam with 5.42 lift and had .0100 clearance no problem you should always clay check it though you want 100 on the intake and 120 on the exhaust.
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Old 03-03-2004, 01:16 AM
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Default RE: valve clearance

ok thanks
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Old 03-03-2004, 09:33 PM
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vfast
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Default RE: valve clearance

if you have an 85 engine 550 lift will bend all the valves..find out first...
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Old 03-03-2004, 09:36 PM
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86lx
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Default RE: valve clearance

86 has the flat top pistons all 85 motors i've seen have cuts.
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Old 03-03-2004, 10:50 PM
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Default RE: valve clearance

it's an 87 block and the pistons have the groves cut in them
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Old 03-04-2004, 12:48 AM
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Default RE: valve clearance

Should clear but ALWAYS check clearance.
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