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whats a better bottom end z6 y7 y8?

Discussion in 'Civic and del Sol - EG and EK' started by mountainracer1988, Oct 8, 2008.

  1. mountainracer1988

    mountainracer1988 LS_TUNER

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    My buddy is rockin a 94 civic coupe he put a rod through the block and wants to put another single cam in it WHY is beyond me. But anyway the d16z6 block that was in it was a beast (FOR A SINGLE CAM) but if im gonna help him build a faster one i wanna know what the best block would be for it :confused:
     
  2. AHHVTEC

    AHHVTEC Well-Known Member VIP

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    d16z6
     
  3. hunter4life

    hunter4life Rotary Man

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    +1 D16z6 is best option
     
  4. t3t4delsol

    t3t4delsol New Member

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    I actualy disagree the z6 comes with a 9.2:1 compression while the y8 comes with a 9.6:1. The y8 makes 2 extra hp and tq because of the extra compression. Now considering that you are talking about a z6 block to begin with, I would stick with that. You have extra things to worry about with the y8 like a knock sensor. Also changing over to the y8 would require converting to obd2, unless your planing on chipping the ecu to run the correct maps for the y8.

    Just my .02
     
  5. AHHVTEC

    AHHVTEC Well-Known Member VIP

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    he asking about blocks not heads, and the y8 block is known to go because of its poor ability to oil right
     
    Last edited: Oct 8, 2008
  6. honda1

    honda1 New Member

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  7. mintoxik

    mintoxik Member

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  8. t3t4delsol

    t3t4delsol New Member

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    No where did i mention about heads, and the y8 doesn't have poor oil ability, It does however have slightly longer rods for increased stroke, so the length the oil has to travel through the spert holes in the rods is longer. If thats what your referring to about poor oil ability. This speculation that the z6 oils better then the y8 has been going on for years. However there is no difference between the two. Honestly I would think is would be harder for the z6 to oil primary on start up because the oil pan is deeper.
     
  9. AHHVTEC

    AHHVTEC Well-Known Member VIP

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    compression is made from the head type and pistons, there both a 1.6 so the stroke is pert much dead on. the y series does have a oil problem ive saw lots of y8 with my own eyes fail because of this.
     
    Last edited: Oct 8, 2008
  10. GlassHeadlights

    GlassHeadlights West West Yall

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    What about a D16A6 block, its known to be the strongest.
     
    1 person likes this.
  11. GlassHeadlights

    GlassHeadlights West West Yall

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    Ya, Y7, Y8. I've seen SOOOOO may with spun bearings or blown.
     
  12. efhondakid

    efhondakid My name is Byron. VIP

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    I have a Y7 in my back yard with a rod knock so bad it sounds like a diesel motor.
     
  13. D15Beater

    D15Beater HNFTuning

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    +1
     
  14. GlassHeadlights

    GlassHeadlights West West Yall

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    My dad snaped a timing belt on his and we put a new piston in and a new head on and its as happy as can be. And believe me, he beats the shit out of it.
     
  15. D15Beater

    D15Beater HNFTuning

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    My next mini me build is gonna be part SOHC ZC, part Y8, part D16a1
     
  16. 99sidude

    99sidude Moderator Moderator VIP

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    the y7/y8 motors are known to have oil pump issues. I'd go for the z6
     
  17. beano135

    beano135 New Member

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    Hey guys. I've got a 98 Civic EX with the d16y8 and its locked up. I want to just swap the block over and/or put a good crank in with some eagle rods and some forged pistons for turbo-charging the beast. From what i've seen all the blocks from 92 to '00 will work(i'm assuming providing the are vtec)
    Do they have to be Vtec blocks to bolt my y8 head back onto it? correct me please and lead me in the right direction. I want to get her running soon. I'm guessing you will say Z6 block right. What model civic did they come in?
    I have considered swapping to a b16a but I think it would be cheaper to turbo what i have and not have to do all the swap work.
    Thanks for any good input
     
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