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What should be included in a head recondition?
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hi there, im getting quotes to get the head on my Holden 138 Grey motor at the moment, and wanted to know what is usually involved? and what should be done in a head reconditioning? also what is a reasonable price for this work? Thanks Edited by user Thursday, 1 June 2006 12:43:59 PM(UTC)
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If its at all possible to do on a 138, maybe ask for hardened valve seats and new valve guides so u can safely run unleaded. I assume a 138 head is the same as 179/202/253/308 design.
Cheers John
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Hi Joel, The head should be crack tested,machined on the face ,valves grind and replaced if necessary.Hardened seats fitted so that you can run on unleaded fuel without the need to add additives to your fuel.You might consider putting double valve springs
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Hi Guys.
trubluhq said
"I assume a 138 head is the same as 179/202/253/308 design."
joelm is talking about a 138 Grey motor head which are totally different to Red heads. They have adjustable common shaft rockers to suit the non-hydraulic tappet |
If at first you don't succeed, just call it Version 1.0 |
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AH ! So is the 138 head just a head ? As in spark plug holes and as u say recessions or cavities for the combustion chamber ? If so wowowow old design. Certainly crack test for sure. I would also assume it has water cavities as well. Sounds like a flat he
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John
Before you get too carried away with this head, make sure it has not been surface ground so many times over the years that if you do it again the compression ratio will go through the roof. Mechanics doing valve grinds are just about a thing of
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got a quote from a local bloke
$ 380 for head reco- crack test, surface grind, put in hardened inserts
$220 without the hardened inserts
is it worth getting a port & polish? quoted $150 for it.
Thanks
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Contact All Head Services.
They are in Braeside VIC Phone 1800 646 988
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I was quoted $30 per seat to supply/fit hardened seats, would also recommend new unleaded valve guides most likely these need replacing at this stage in life, as said above it was common for mechanics to pull the head every 50000 miles or so and do the va
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What should be included in a head recondition?
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