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Z120 to Z129

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Jason S.
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Joined: 07 Dec 2011
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PostPosted: Sun Nov 11, 2012 5:22 am    Post subject: Z120 to Z129 Reply to specific post Reply with quote

I had posted a while back on I had come up with a way to get close to a TO30 or 35 output while using a Z120 block. I would have to get custom pistons made but at work the other day it came to me. My Z120 had been rebuilt with the no longer available 3.25" sleeves. I felt stupid because I hadn"t thought about it before...the TO30 was 3.25" bore. My sleeves have no wear on them because the motor hasn"t been run much since it was rebuilt by a previous owner. All I needed was a TO30 crank and a set of standard TO30 pistons which this site lists. Does anybody know anything about these pistons on this site? Aside from that I would have to get a TO30 intake valve and have the seat recut in the head for its larger diameter.
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PostPosted: Sun Nov 11, 2012 12:49 pm    Post subject: Re: Z120 to Z129 Reply to specific post Reply with quote

I have a reconditioned crankshaft for a Z129 complete with new Clevite bearings. If interested give me a call @ --No-Advertising-in-Forums Jim Peppers in FL
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Duner Wi
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Joined: 04 Feb 2001
Posts: 3850

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PostPosted: Mon Nov 12, 2012 10:13 am    Post subject: Re: Z120 to Z129 Reply to specific post Reply with quote

TO 30 had a longer duration cam than the 20s I think. To 30 cam might be good for a little power.
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