backdate 76 GC heads to 73-74 GA or GB heads |
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backdate 76 GC heads to 73-74 GA or GB heads |
SuperDave |
Mar 3 2009, 12:09 PM
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#1
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Newbie Group: Members Posts: 5 Joined: 6-January 09 From: Oklahoma City area Member No.: 9,907 Region Association: Southwest Region |
I'm a newbie here. I've tried searching pelican and here to no avail. My apologies if this has been covered before...
I am very close to buying a 76 2.0 to replace the 1.7 in my 72. The 2.0 still has the original heads and emissions equipment. I've read enough to know the emissions equipment made the car run hotter and less efficiently and my state (Oklahoma) doesn't require it so I'm planning on removing the air injection. Three questions: Are 73-74 heads a bolt-on for the GC engine? If so, would I gain anything by replacing my 76 heads with GA/GB heads or should I just fill in the holes like was discussed in a recent thread? I've heard the valve sizes are different between 73-74 and 75-76 heads, but haven't been able to verify this. True or false? Thanks! David |
SirAndy |
Mar 3 2009, 02:23 PM
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#2
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Resident German Group: Admin Posts: 41,676 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Btw. some people have had success by adding a port to the valve covers. Which obviously can be done with the engine in the car.
That should work just fine, if you can get it to not leak ... (IMG:style_emoticons/default/biggrin.gif) Andy |
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