Rebuilding the heads - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-13-2004, 09:09 PM   #1
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Default Rebuilding the heads

How hard would it be to rebuild my heads. I have a leaking valve seal and if I pull the heads off, I want to rebuild them. What all is involved? What tools and gaskets and other items will I need?
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Old 08-13-2004, 09:17 PM   #2
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or is there somewhere that sells fully assembled heads??
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Old 08-13-2004, 09:48 PM   #3
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Just a straight rebuild no performance modding?
New valves, springs, gaskets, valve locs, retainers, and a good clean job. Plus new push rods (cause they're cheap).

You could also take them to a machine shop and about $500 they can rebuild them for you.
Polish and porting with larger valves and a shaved deck can add up quick, Intense sells stage 3 for around $1800 but no need without an aggressive cam to match.
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Old 08-13-2004, 10:02 PM   #4
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Quote:
Originally Posted by PontiacDad
Just a straight rebuild no performance modding?
New valves, springs, gaskets, valve locs, retainers, and a good clean job. Plus new push rods (cause they're cheap).

You could also take them to a machine shop and about $500 they can rebuild them for you.
Polish and porting with larger valves and a shaved deck can add up quick, Intense sells stage 3 for around $1800 but no need without an aggressive cam to match.
are there mods for the series I heads?
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Old 08-14-2004, 12:27 AM   #5
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Not off the shelf, but a good shop can do anything you want, including larger valves.
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Old 08-14-2004, 02:39 AM   #6
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Quote:
Originally Posted by willwren
Not off the shelf, but a good shop can do anything you want, including larger valves.
Tsk Tsk willie...lest we forget the 1.72 roller rockers? hehe
They're not cheap though
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Old 08-14-2004, 02:47 AM   #7
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Custom ones would probably run about the same, or modifying some Small Block Chevy ones to fit.
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Old 08-14-2004, 02:50 AM   #8
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Did the chevy thing ever get proven? and err...who makes custom rockers?
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Old 08-14-2004, 02:52 AM   #9
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The SBC ones were fully completed. I believe you have to have them drilled out slightly to fit our mounts. I never heard of a problem with them either.
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Old 08-14-2004, 02:53 AM   #10
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Who uses them?
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