Quick Head Question
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Teching In
Joined: Sep 2016
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Quick Head Question Newbie head question here. So I'm buying a 2002 WS6 soon and the guy I'm getting it from told me that the previous owner installed ported and polished 5.3L heads on it. Aside from pulling off the intake, is there any way of telling if the heads are cathedral port or square port? Any input would be helpful. Thanks!
FormerVendor
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Verdad Gallardo Some have a void, for lack of a better word, cast into the deck. Those require a specific head gasket, but I think both castings came that way at some point and that it was more dependent on the year and not so much the casting number.
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From: Ohio
Some of the 862 castings were castech heads, which had a tendency to crack around the bolt holes and weep coolant. I don't think any of the 706 heads had that problem.
Some have a void, for lack of a better word, cast into the deck. Those require a specific head gasket, but I think both castings came that way at some point and that it was more dependent on the year and not so much the casting number.
Some have a void, for lack of a better word, cast into the deck. Those require a specific head gasket, but I think both castings came that way at some point and that it was more dependent on the year and not so much the casting number.
I've never had an issue with the castings, but I do have 2 sets of 706 heads with the Castech logo on them.
