Engine & Internal Chat about beefing up your engine's insides here.

Z6 or Y8??

  #1  
Old 02-11-2006, 01:47 PM
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Default Z6 or Y8??

which head should i go with for my d15b7 engine in my 94 civic? and reasons for which one you would choose? i'm hearing the z6 gets better flow so now i may go with the z6 but give me all your thoughts on this subject. thanks.
 
  #2  
Old 02-11-2006, 02:21 PM
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Default RE: Z6 or Y8??

Y8 will make compression higher, and makes the most power, but z6 would be a pretty simple bolt-on for your car. and the power isnt that much different, but enough that it might be worth it.[&:] sorry thats not very definite.
 
  #3  
Old 02-11-2006, 02:50 PM
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Default RE: Z6 or Y8??

either way you needs a few different things. z6 head requires either hacking the b7 distributor, or swapping for a z6 distributor(different mounting flanges). y8 allows you to use your current distributor but requires y8 headbolts.
 
  #4  
Old 02-11-2006, 03:39 PM
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Default RE: Z6 or Y8??

either way i go, i'm going to put a different distributor in. a new one may be msd or something. so then for the most power the y8 huh? thanks
 
  #5  
Old 02-11-2006, 09:32 PM
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Default RE: Z6 or Y8??

Id go for the y8 personally.
 
  #6  
Old 02-11-2006, 09:54 PM
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Default RE: Z6 or Y8??

Z6
 
  #7  
Old 02-11-2006, 10:30 PM
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Default RE: Z6 or Y8??

NA-Y8
Boost-Z6
 
  #8  
Old 02-12-2006, 12:44 AM
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Default RE: Z6 or Y8??

Ive always heard that the Z6 head flows better than the Y8.......Caleb am I hearing wrong?
 
  #9  
Old 02-12-2006, 01:31 AM
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Default RE: Z6 or Y8??

well if its true for ....n/a=y8 and boost=z6 and i'm going n/a i think that answers it. and i found a good deal on a complete y8 head for 200 on craigslist. <-----love that site. the guy said he also has a honda metal head gasket for it too. is it worth getting the dealer metal gasket for it too?
 
  #10  
Old 02-12-2006, 11:06 AM
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Default RE: Z6 or Y8??

n/a: Y8 head, A3 rods, Z1 pistons.

makes for a crazy CR
 

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