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Author Topic: 427 SOHC Valve Clearances  (Read 3379 times)

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Bart

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427 SOHC Valve Clearances
« on: April 18, 2012, 06:40:50 AM »
Hey all, I have to adjust the valve clearances on my bosses 427 SOHC but he doesn't know what the lash should be. He thinks it has a set of old Crane "Nitro" cams in it. If anybody could please give me a ballpark lash setting it would be a great help.
Thanks in advance for any help.
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WConley

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Re: 427 SOHC Valve Clearances
« Reply #1 on: April 18, 2012, 10:08:29 AM »
Hi Bart -

Start with .015" on the intake and .025" on the exhaust.

That's the typical old-school setting.  Reference here from Gessford Machine's website:  http://www.gessford.com/images/sohc_info.htm

Sounds like you have a very cool boss  8)
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jayb

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Re: 427 SOHC Valve Clearances
« Reply #2 on: April 18, 2012, 12:03:34 PM »
The Crane nitro grind cams I have specify .015"/.025" like Bill says.  My new Comp Cams specify .020"/.020".
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Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

Bart

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Re: 427 SOHC Valve Clearances
« Reply #3 on: April 18, 2012, 02:18:12 PM »
Thanks guys, will get stuck into it today.
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