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Post by Corrosion on Jan 6, 2013 17:45:06 GMT -5
I got the cylinder head, Quality is good, Machine work is exellent. It has a 5cc chamber & 3cc squish band, 8cc total. The deck surface is thick enough to take-off and recut any size Combustion Chamber / Squish, "O" ring design imaginable. The head is slightly over-sized in all but the critical dimensions. but thickness of the fins and body are considerably larger. there is plenty room to tap for a sender. I took some photos if intrerested. The one in the center is a Stage 6 race / for example www.ebay.com/itm/320744687313?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649Attachments:
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Post by teddy554 on Jan 6, 2013 17:57:28 GMT -5
Im want to buy one later in the week, how the performance with these heads
Sent from my SPH-D710BST using proboards
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Post by scoottrash1990 on Jan 6, 2013 19:28:13 GMT -5
i was also looking at getting this head...keep us posted on how it works for you...
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Post by Corrosion on Jan 6, 2013 21:37:20 GMT -5
Will be a while. I have a 70cc. I am going to have to re-size the Squish band & chamber then cut a "O" ring groove. A co-worker does my machine work. Its un-heated Shop, in the Poconoes, PA.
It will be Spring when I see that Head.
They come in a 90cc chamber configuration. If you got a 90cc. It will be a bolt on part. I bet it gives you a compression bump.
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Post by teddy554 on Jan 6, 2013 21:41:38 GMT -5
I will find out soon;)
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Post by 90GTVert on Jan 6, 2013 21:47:17 GMT -5
Thanks for the pics and info. That's a small chamber for a 90cc.
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Post by Corrosion on Jan 6, 2013 21:49:11 GMT -5
This is a one shot deal. When there gone there gone. He is not going to make any more.
If you have any questions he answer's right back. He 's a no B/S seller.
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Post by teddy554 on Jan 11, 2013 13:10:19 GMT -5
90GTVert
Sorry to bother you with this but i am over my head :doh: and cant really answer the sellers replay, he replayed back that he could(i can give you certain diameter and /or step built in, i don't do the cc ). but i really dont think that will fix the issue with the cc being to small of a area
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Post by 90GTVert on Jan 11, 2013 14:01:27 GMT -5
Sounds like he can make the bore size different, or add in more lip or "built in squish" as I call it. It'll up the cc, but you have wider squish clearance. Not really a big deal in most cases. To get both the cc you want and the squish that's "ideal" you'd need to make the actual combustion chamber (domed part) larger. I've ran wide squish plenty of times with good results, so I don't think it's really a big deal for the avg street build. The main reason I've opened up combustion chambers is so I can get away with 1 head gasket and not needing to change the base gasket thickness and timing to get compression where I want.
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Post by Corrosion on Jan 11, 2013 18:44:59 GMT -5
If your going by the Ebay Advertisement. where he says something about 90 or 70 cc.
I did ask him about doing a 70cc with a groove for a n "O" ring. He doesn't offer any machine service any more, there as is. There all set up for 90cc.
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Post by Corrosion on Jan 11, 2013 18:46:06 GMT -5
If your going by the Ebay Advertisement. where he says something about 90 or 70 cc.
I did ask him about doing a 70cc with a groove for a n "O" ring. He doesn't offer any machine service any more, there as is. There all set up for 90cc.
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