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Power Strokes
6.4 Tech
preventing early 08 valve issues before they start.
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[QUOTE="sootie, post: 872978, member: 8162"] spend the money on the pistons now. its not worth sacrificing your block when the stock ones crack. i haven't heard of valve issues on the 6.4's but as was mentioned above, 200.00 for new lifters is cheap insurance. check the plastic rocker clips for wear as well. if you are doing the work yourself, have your torque wrench calibrated before you start as it may save you a block in the end... i dont think the stock hpfp with hold up to bigger nozzles. the early 08s had a problem with the hpfp harness chaffing and shorting, i think there is an update for that. check for cavitation on the front cover behind the waterpump when it is apart. it would probably be a good idea to do the oil cooler when your in there. [/QUOTE]
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6.4 Tech
preventing early 08 valve issues before they start.
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