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ddgonzal
Re: Is a H89 head high or low compression ratio
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H89 head is closed chamber.

Actually with A-series engines, the pistons control the compression. A14s come with dished pistons which makes low compression (regardless of the head used). Use flattops or domed pistons for high compression.

H89 head features: Oval Port, Water Ports, New bolt pattern. Was fitted to most A15s.

H89 Head
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Posted on: 2009/10/13 2:44
Transfer the post to other applications Transfer

Subject Poster Date
     Is a H89 head high or low compression ratio Datsss 2009/10/12 21:48
       Re: Is a H89 head high or low compression ratio andy-roo 2009/10/12 22:03
       Re: Is a H89 head high or low compression ratio Datsss 2009/10/12 22:07
         Re: Is a H89 head high or low compression ratio andy-roo 2009/10/13 0:01
           Re: Is a H89 head high or low compression ratio ddgonzal 2009/10/13 2:44
             Re: Is a H89 head high or low compression ratio Datsss 2009/10/13 3:26
       Re: Is a H89 head high or low compression ratio revhead001 2009/10/13 4:44
         Re: Is a H89 head high or low compression ratio ddgonzal 2009/10/13 4:55
       Re: Is a H89 head high or low compression ratio revhead001 2009/10/13 5:19
         Re: Is a H89 head high or low compression ratio ddgonzal 2009/10/13 6:03
       Re: Is a H89 head high or low compression ratio Adam12 2009/10/13 8:00
         Re: Is a H89 head high or low compression ratio ddgonzal 2009/10/13 16:27
           Re: Is a H89 head high or low compression ratio Datsss 2009/10/13 21:43




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