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X2 Cam Grind
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David 67HR Offline
#1 Posted : Friday, 15 February 2013 4:24:24 AM(UTC)
David 67HR

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Can anyone tell me what the cam grind was on the HR X2 186K engine, also what valve sizes are in the heads?
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castellan Offline
#2 Posted : Friday, 15 February 2013 5:04:27 AM(UTC)
castellan

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Same as the auto HT-T 186 cam i think.
the valves are the same size as all red 6 cyl.
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Dr Terry Offline
#3 Posted : Friday, 15 February 2013 6:01:16 AM(UTC)
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I'll check my books, but I'm pretty sure the X2/S camshaft had the same cam timing as the stocker, but more lift.

AFAIK the valve sizes were the same size as the stockers also.

Dr Terry
If at first you don't succeed, just call it Version 1.0
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David 67HR Offline
#4 Posted : Friday, 15 February 2013 9:39:26 AM(UTC)
David 67HR

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If i put a 12 port aluminium yella Terra Head on a 186K block what would be a good cam grind?
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Dr Terry Offline
#5 Posted : Friday, 15 February 2013 4:55:50 PM(UTC)
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Talk to a pro engine builder. It will depend very much on what induction & exhaust you are using, it all has to work in unison as a complete package.

Dr Terry
If at first you don't succeed, just call it Version 1.0
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David 67HR Offline
#6 Posted : Friday, 15 February 2013 9:41:26 PM(UTC)
David 67HR

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Yes i understand, C.O.M.E ground a cam for my 2000 VTII R8 224/228grind, also put on VY inlet manifold and VCM OTR intake for 350 RWHP
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David 67HR Offline
#7 Posted : Friday, 15 February 2013 9:46:27 PM(UTC)
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The cost of an Aluminium Head is about $2500 complete with claims of 33% less wait and 50HP compared to stock red 6 head. What HP improvements would a stage 3 yella terra iron head give compared to stock 6 head?
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