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#1 Posted : Friday, 28 May 2004 6:13:12 AM(UTC)
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g,day
does anyone know why the pollution valleycover wont fit old style heads on a 253
cheers...darrin
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#2 Posted : Friday, 28 May 2004 6:27:31 AM(UTC)
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Any Red pollution valley cover will fit OK. Blue will not.


I'm running a VB commodore intake manifodl on a HQ 253 no problem. You will need to blank off the pollution (EGR) hole wit h aplate oyu can get at most auto stores.

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#3 Posted : Friday, 28 May 2004 7:00:28 AM(UTC)
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thanks scott
I have hz 253 i am putting yellow terra heads on but they are non pollution and I didnt know if if the exhaust port caused any problems.
I guess the choke heater holes wont hurt .
do you know anything about cam timing with variable gears.
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#4 Posted : Friday, 28 May 2004 5:38:02 PM(UTC)
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http://www.iskycams.com/degreeing.html


...or do a search of Crow or Crane cams for degreeing your cam

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#5 Posted : Sunday, 30 May 2004 5:37:56 PM(UTC)
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thanks taz2 isky was what i was looking for.
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