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| RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections |
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| RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections |
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10-06-2013, 11:03 AM
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#14 |
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rotaryevolution.net
Join Date: Feb 2011
Location: Las Vegas, NV
Posts: 248
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it is probably a 3B REPU casting block with the short primary runners, the housings look like 76-78 year castings. i believe even the 76-78 model year REPUs still retained that early 3B small port design.
there should be a cast number/letter on the front iron under the water pump with either a 3B or a Y, Y is the tall primary runner casting for the cars.
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http://rotaryevolution.net Last edited by Rotary Evolution; 10-06-2013 at 11:06 AM. |
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