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which head is best and why i was thing about building a high performance engine and would like input . i was going to use l28 block e31 head slalom cam mikunis and light weight flywheel what is best combo and why thanks
 

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The N42 is the best high performance head with the least amount of mods.
Why:
The head already has the large valves in it.
Combustion chambers are only 2cc's larger then the E31
Ports are about the same. The N42 has noches for the injector but they can be welded over to remove them.
The N42 is most likely in better shape and will require less $ to rebuild.
> which head is best and why i was thing about
> building a high performance engine and would
> like input . i was going to use l28 block
> e31 head slalom cam mikunis and light weight
> flywheel what is best combo and why thanks
 
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