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Cobra R's
SCCA Dave Schotz 95R J302 Head Ruling Information?
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<blockquote data-quote="tomshep" data-source="post: 16702705" data-attributes="member: 8203"><p>I just looked up the J head in my 1991 Ford Motorsport catalog. I'm surprised they allowed that head. From what I read it has 1.94/1.60 valves and a 58cc chamber. Those are larger valves and a smaller chamber than your GT40 cast iron heads.</p><p></p><p>In the same catalog they introduced the GT40 aluminum head. This head is closer to a cast iron GT40 head.</p><p></p><p>This is what was allowed in the professional series. I am not 100% sure what year it was allowed by IMSA/SportsCar/Motorola or Grand Am. I know many parts took time for the series to allow as it progressed through the various name changes.</p><p></p><p>Good luck in your efforts and keep us updated on the progress.</p><p></p><p>Any pictures of the car?</p><p></p><p>Tom</p></blockquote><p></p>
[QUOTE="tomshep, post: 16702705, member: 8203"] I just looked up the J head in my 1991 Ford Motorsport catalog. I'm surprised they allowed that head. From what I read it has 1.94/1.60 valves and a 58cc chamber. Those are larger valves and a smaller chamber than your GT40 cast iron heads. In the same catalog they introduced the GT40 aluminum head. This head is closer to a cast iron GT40 head. This is what was allowed in the professional series. I am not 100% sure what year it was allowed by IMSA/SportsCar/Motorola or Grand Am. I know many parts took time for the series to allow as it progressed through the various name changes. Good luck in your efforts and keep us updated on the progress. Any pictures of the car? Tom [/QUOTE]
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SCCA Dave Schotz 95R J302 Head Ruling Information?
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