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Discussion Starter · #1 ·
I recently overheated and to my dismay blew a head gasket on my ZZ4 when the thermostat decided to close on my in the middle of an otherwise normal highway drive. Now, since I have to take the heads off and send them out to get machined (and pocket ported), I was considering installing the LT4 HOT cam and 1.6 roller rockers. Has anyone swapped that cam into thier zz4's. Also, how much time would swapping in the cam add to my project, and is it that difficult to do with the top end off? I like the power increase I would get from that cam, I just don't know if it's woth the trouble.

Thanks for your help, Mike
 
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