03-23-2010, 09:23 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
That end of the guide is not the port end but the upper end that is cut for pc seals--it is common for them to split where they are cut down for the seal when someone puts in bronze liners and then expands them--that is what you get with that type repair---keep in mind that the head probably had had pc type seals put on to replace the original umbrells rubber ones, thats why they are cut down--then with more wear, they had the bronze liners installed and then sweged out which causes the cracking---but a pc seal will hole the guide together. The way I do it???? no---but evidently you bought a used set of 45 + years old heads---what did you expect????
The valvesaren't bad for used heads---they are not up to my standards for high performance/racing, but niether are your choice of stock ancient heads.
While your at it, what is the condition of the seats, have they had hardened seats installed??
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