High people, first post here. Im an aussie l67 owner and you guys seem to have pretty much got these donks sussed right out so this is the place to ask my question.
I have an intense stage two cam i wanna instal but abit wary about my valve retainer/stem seal clearance. I chose the s2 after doing some research and was under the impression that with a combination of manly retainers and viton valve stem seals which i purchased,( along with crow 105s and jp double roller), i would have an extra .065 thou clearance.
This would bring available clearance to .580.
Is2 max lift is .541 at stock 1.6 rr. BUT after purchasing the cam i spoke to chris from intense and he says that i wont have clearance regardless of retainer used. However he never mentioned the extra clearance of the vitons.
So guys are running the xp hot with just milld retainers and is2 has only .005 more lift then xp. There are some guys over here running is3 with stock heads only retainers and seals.
So to cut to the chase, my heads and gaskets are in excellent condition(recent comp test showed 180-183 all cyl), and if i dont have to i dont want to lift the heads untill i have the cash for a good port and big valve. Can anyone give an opinion from experience.
I figure at this lift worst case scenario my seals are screwed in short order. thanks.
Ken
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