 2.0L Heads, What the heck is this ?? |
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| LvSteveH |
  Aug 9 2003, 04:31 PM
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#1
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I put the Poor in Porsche  Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600  |
I just picked up an extra 2.0L head cheap, and now I know that you get what you pay for. I can't for the life of me figure out why, but there is a port drilled on each side of the intake studs, as indicated by the arrow in the pic, and the hole extends all the way down into the exhast port, just behind the valve. It appears to be tapped with threads on the end in the port. Could it be for an air/fuel mixture sensor for each cylinder? How bout the world's smallest quad turbos.
Thanks for your help. (IMG:style_emoticons/default/blink.gif) Attached image(s) 
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| JeffBowlsby |
Aug 9 2003, 04:45 PM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,548 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Those look like the 75-76 GC code 2.0L heads...
with air injection ports. They can be plugged and ignored. |
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| Bleyseng |
Aug 9 2003, 04:48 PM
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#3
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Those are the super rare heads for the NOS injection option! Way cool!! (IMG:style_emoticons/default/laugh.gif)
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| redshift |
Aug 9 2003, 05:00 PM
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#4
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Those are the blow-by relief valves, you don't want all that oil that got around your rings leaking out around the gaskets!!
It also solved the problem with clean engine compartments on early cars. M |
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| seanery |
Aug 9 2003, 05:17 PM
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#5
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
There is an active thread, a guy is looking for a set of those.
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| LvSteveH |
Aug 9 2003, 06:20 PM
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#6
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
(IMG:style_emoticons/default/laugh.gif)
I didn't even think of air injection, I just assumed Porsche was smarter than that. I got this head and a 1.7L head for $100. It's always good to have parts. Unfortunately I don't have the other side. I appreciate all the input. I can imagine the surprise if someone put this on a car and didn't notice the ports, which would be easy to do. It would sound like a harley. |
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| McMark |
Aug 9 2003, 06:34 PM
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#7
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Just so we're clear, isn't this the not-so-interesting Bus 2.0 head and not the quite-intereting 914 2.0 head which makes big power?
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| LvSteveH |
Aug 9 2003, 07:30 PM
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#8
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
To the best of my knowledge a bus 2.0L head is still the 1.7/1.8L head we all know and love, with four intake studs and standard valves. The 914 2.0L heads have the sodium exhaust valves (which this head has) and three intake studs.
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| cgnj |
Aug 9 2003, 07:34 PM
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#9
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Senior Member Group: Members Posts: 627 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None
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QUOTE The 914 2.0L heads have the sodium exhaust valves (which this head has) and three intake studs. Correct, I have a set on the shelf. I can pull them down and do a direct comparison with a 73 2.0 head. Any interest? Carlos |
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| LvSteveH |
Aug 9 2003, 08:23 PM
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#10
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
I have a couple sets of 2.0L heads, I just picked this one up as a spare in case I ever need one. I suppose it would be better to plug the hole than to weld it up in the event that it needs to be used on an original car that still has air injection. Is anyone else addicted to collecting 914 parts? It's getting ridiculous.
(IMG:style_emoticons/default/cool.gif) |
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