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Hi Flow Heads 2300cc Internals

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62 replies to this topic


  • Drivers
  • 4,983 posts
Joined: 27 Aug 2006
  • Name:Rich
  • Location:Peterborough
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Will it fit the alloy XU9 block from the 1.9 8v or just the iron blocked stuff?

If I'm not mistaken the XU9JA (8v) and XU9J4 (Mi16 1.9) blocks are pretty much identical, bar some webs and stuff. The liners are more chunky but dimensionally they are the same.

IIRC as the XU9J4 crank fits the S16 (XU10) iron block then I'm basically saying AFAIK the crank will fit either, it's just made of a different, stronger material and has a 4mm longer throw than the XU9 and 6mm longer than the XU10 crank.

I'm 98.6676% sure that's correct. What you need to match and watch though is rods and pistons.

People are still playing around with all kinds of combinations on here, even with slight mods as they are all fairly similar it seems.

Edited by DrSarty, 30 September 2009 - 10:54 AM.


  • Pitcrew+
  • 2,775 posts
Joined: 03 Jan 2004
  • Location:Trondheim, Norway
Only thing that springs to my mind is that you need to investigate whether you can find trust bearings that fits with the 92mm crank in the alloy block.

Not sure if it will be a problem, just remember something about that from a post like 7-8 years ago :wacko:


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  • 1 posts
Joined: 12 Mar 2014
  • Name:Andreas
  • Location:Berlin, Germany
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How rods can I use for the 2.1 TD crank in a XU10J2 block?

I can fall back the pistons, but the form is good I think.

Machined pistons are flat on the top and the mix can undesired whirl in befor the compression.