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Should I Replace My P72 Head Valve Guides? If So, How?

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Old 09-15-2016, 10:24 AM
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Should I Replace My P72 Head Valve Guides? If So, How?

I'm finally in the process of building a forced induction JDM H22A (~800chp goal) and I'm trying to price everything out for the head, my bottom end is going to cost 3-5k I already have that pretty much figured out. But I have some questions for the head and I'm trying to save money in smart ways that won't compromise reliability in the end because I'll need as much as I can get obviously. I am wondering about replacing the valve guides, I know I would have to get a machine shop to do it (or heat up the head myself and knock the guides out and heat it again to put new ones in and get the tolerances correct and everything and then ream them out to proper valve tolerance, kind of sketch method it seems like to me) so I'm wondering do I even have to replace these things or should I not worry about them? I can't find any threads answering this question at all hence the new post. Hopefully someone can help, thanks!
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guide, h22a, head, replace, valve

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