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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: How far can I bore a 3K out to?
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Wed, 15 January 2003 15:03
 
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Found out a bit more about the offset gudgeon pin and it's reasoning. A trusted local engine reconditioner friend of mine has told me it is more for keeping pistons quiet in the bores than for any other reason (basically avoiding piston slap in the bores). He also stated that you could reverse the pistons so they became noisier, with the advantage of producing more power ("they go alot harder").
Also now hunting down pistons to suit the future bore, crank and rod sizes. At the moment I need a piston 78.048mm in bore with a revised pin height as the block will be smaller than the original 4K (by about 10mm). The original pin height for the 3K piston is 35.48mm, so we need a piston with a pin height of around 25.48mm. Will confirm the exact pin height when I can accurately measure up the block height differences between the two blocks. Gemini pistons go close at 78mm (oversize by 1mm) and a pin height of 28.2mm, with the same pin diametre of 18mm as the 3K/4K gudgeons, and they are a flat top piston like the original 3K/4K pistons. Still need to confirm a few things before I make the final selection.
On another point, I'll have a set of Repco Pistons to suit either 3K or 4K for sale. I'll confirm the bore size, but I think they are 60" over. Pistons still look to be in good order. I may also have a set of balanced rods from the 3K for sale too, if anyone is interested, let me know?!
Clint!
[Updated on: Wed, 15 January 2003 15:05]
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| | Subject | Poster | Date |
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3K Rally Motor Performance Rebuild to 1400cc
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CLG | Fri, 13 December 2002 13:08 |
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Re: How far can I bore a 3K out to?
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Bill Sherwood | Fri, 13 December 2002 21:27 |
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Re: How far can I bore a 3K out to?
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CLG | Sat, 14 December 2002 17:41 |
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Re: How far can I bore a 3K out to?
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THE WITZL | Sat, 14 December 2002 14:59 |
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Re: How far can I bore a 3K out to?
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Purple_Beasty | Sat, 14 December 2002 20:43 |
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Re: How far can I bore a 3K out to?
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Bill Sherwood | Sun, 15 December 2002 01:05 |
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Re: How far can I bore a 3K out to?
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CLG | Thu, 09 January 2003 13:52 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Thu, 09 January 2003 14:35 |
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Re: How far can I bore a 3K out to?
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indigoid | Thu, 09 January 2003 15:56 |
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Re: How far can I bore a 3K out to?
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bmak | Fri, 10 January 2003 03:54 |
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Re: How far can I bore a 3K out to?
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indigoid | Sat, 11 January 2003 08:39 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Sat, 11 January 2003 15:52 |
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Re: How far can I bore a 3K out to?
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CLG | Wed, 15 January 2003 15:03 |
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Re: How far can I bore a 3K out to?
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CLG | Sun, 19 January 2003 13:47 |
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Re:3K Performance Rebuild, How far can I bore a 3K?
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CLG | Tue, 04 February 2003 16:23 |
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Re: Re:3K Performance Rebuild, How far can I bore a 3K?
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Super Jamie | Tue, 04 February 2003 21:24 |
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Re: Re:3K Performance Rebuild, How far can I bore a 3K?
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CLG | Thu, 27 March 2003 09:58 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Tue, 17 December 2002 03:00 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Tue, 17 December 2002 03:07 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Tue, 17 December 2002 12:54 |
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Re: How far can I bore a 3K out to?
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CLG | Sat, 21 December 2002 06:22 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Sat, 21 December 2002 08:45 |
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Re: How far can I bore a 3K out to?
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CLG | Tue, 07 January 2003 23:01 |
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Re: How far can I bore a 3K out to?
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bmak | Tue, 07 January 2003 23:33 |
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Re: How far can I bore a 3K out to?
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Super Jamie | Tue, 07 January 2003 23:48 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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clubagreenie | Thu, 27 March 2003 10:58 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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Super Jamie | Thu, 27 March 2003 20:53 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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CLG | Fri, 28 March 2003 01:20 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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CamZH | Fri, 28 March 2003 01:48 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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bmak | Sat, 29 March 2003 06:48 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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vauhtirotta | Fri, 25 March 2005 08:57 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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PMP020 | Fri, 25 March 2005 11:08 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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Johnny | Fri, 25 March 2005 12:50 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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Joshstix | Sat, 26 March 2005 07:06 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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CLG | Sun, 27 March 2005 08:54 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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ke30king | Sun, 27 March 2005 08:57 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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CLG | Sun, 27 March 2005 11:21 |
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Re: 3K Rally Motor Performance Rebuild to 1400cc
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ke30king | Sun, 27 March 2005 12:13 |
