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Hey just wondering if anyone knew what this head was off. its on a hr 186 engine but has 202 sized spark plugs the casting numbers are M4 10L 2811930. any help would be appreciated
thanks mark
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Hi Mark.
2811930 is a standard 202 casting, HQ/HJ/LJ/LH/early LX pre-ARD27A.
Dr Terry. |
If at first you don't succeed, just call it Version 1.0 |
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thanks are they any better than a 186 head because i didn't think they were. but i got told it had bigger valves
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Rank: Guest
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thanks are they any better than a 186 head because i didnt think they were. but i got told it had bigger valves
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Rank: Veteran
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Joined: 1/03/2005(UTC)
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Was thanked: 219 time(s) in 199 post(s)
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Hi Mark.
They are the same except for the smaller spark plug holes & the fixed rocker gear. I personally prefer the earlier head because of the adjustable valve gear. AFAIK valves & ports remained the same.
Dr Terry. |
If at first you don't succeed, just call it Version 1.0 |
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