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i can get a set of ZE heads for $500 is it a good price?

can what else would i need to put them on my KL03?

what else could i do to the heads while there out (port&polish, larger valves, etc)?

thanks
 

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$500 sounds reasonable.

The ZE heads will have square(ish) ports rather than the round ports on KL heads. You'd really need a KLZE intake manifold to compliment the heads, as the ports will match straight up, and the bigger ports in the ZE heads will be utilised.

Without the ZE manifold there would be little to no gains, as the 03 manifold will still restrict the flow.
 
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