07-19-2005, 11:39 AM
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CC Member
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Join Date: Jun 2003
Location: Freedomia,,
Il
Cobra Make, Engine: Coupe,Blue w/white stripes SB; Roadster, Blue w/white stripes BB w/2-4s; SPF installer/Hot Rod-Custom Car builder
Posts: 1,376
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Not Ranked
According to an old TRW catalogue, these are 12.4-1 pistons and .030 versions are 12.6-1.
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WDZ
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