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Discussion Starter #1
Pulled these out of a 83 spider parts car that was advertised as having "11 mm cams"
Any idea what they are? Might be stock for all I know.

IMG_20200915_142527872.jpg
IMG_20200915_142551613.jpg
 

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Richard Jemison
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7,684 Posts
From the look of the lobe and the much larger BC on the intake cam they well be stock Motronic cams. Head may be Motronic as the Intake wont fit in earlier heads.
 

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Discussion Starter #3
Thanks Richard
I'm thinking about using this exhaust cam in my 74 Spica GTV as an improvement over stock and a "euro cam" for the intake side.
Car will also have motronic pistons/liners.
Anyway to verify this is a motronic exhaust cam?
There are no markings except noted in the pic.
 

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Richard Jemison
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7,684 Posts
I don`t think the Motronic Exh was 10.5mm. More like 10.0mm.
 
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