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#65906 09/17/2006 6:12 PM | Joined: Aug 2004 Posts: 1,067 Shop Shark | | Shop Shark Joined: Aug 2004 Posts: 1,067 | On a later 235 with solid lifters, what's the adjustment lash need to be for the rocker arms? I've heard 0.030" but I'd like to be sure.
Thanks.
52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird
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#65907 09/17/2006 6:35 PM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I think the 235 and 261 settings in these instructions for setting 216/235/261 valve lash are correct for later 235s and 261s. Even if the settings are a little off, a .030" setting is greater than any I've seen for these engines. | | |
#65908 09/17/2006 7:11 PM | Joined: Aug 2001 Posts: 1,299 'Bolter | | 'Bolter Joined: Aug 2001 Posts: 1,299 | I will guess that it is closer to .006 intakes and .016 exhaust. Exhaust will usually be set looser due to higher temps and actually the cooling of the valve comes from more time on valve seat. | | |
#65909 09/18/2006 2:14 AM | Joined: Mar 2005 Posts: 637 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 637 | .006 and .013 are what I've used for all non hydraulic valves on 216's and 235's from 1932 to 1962, never had a burnt valve or any valve train problems. | | |
#65910 09/18/2006 2:41 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | .006 and .016 are correct for the '55-'59 235,.006 and .020 for the 261. Performance cams should be set to the cam manufacturer's specifications-example; Howard M4F-.012 intake-.016-exhaust.
Bill Burmeister
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