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I have an R33 RB25det and the bolt holding the idler pulley broke thrashing the head. I took it to a machine shop and only some of the valves are bent. The block is fine, I was in fifth gear at like 1300 rpms when it broke. Just wondering if there is OEM vavles from a different car or ones for a rb25det that I can get my hands on, also I am going to need guides and vavle seals. Any suggestions?

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https://www.sau.com.au/forums/topic/39619-help-rb25det-valves-oem/
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Your VERY lucky on this, most people i know that have broken timing belts, loose all 24 Valves. (regardless of what gear/RPM there doing) And end up replacing the head, because its cheaper.

Chances are that if your valves are bent, the guides & seals are going to need to be replaced on those bent valves.

and theres no OEM dude. (that i know of at least)

good luck.

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