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<blockquote data-quote="MalcolmV8" data-source="post: 15065807" data-attributes="member: 8854"><p>Actually just the opposite. The 1141 L/R are the blue version of the gaskets. They have a thin rubber coating on them and are rated for less HP. Their main purpose is that they will seal on a surface milled as rough as 60 Ra I think it was. The smooth black OEM gaskets, part # 26222PT (right), 26187PT (left) require a surface finish of 20 Ra or smoother as I recall but will hold more power.</p><p></p><p>With that said I've seen people report over 1000 whp on the blue 1141 gaskets. I called Felpro for exact numbers and they won't say. All they will say is the 1141 holds less than the 26xxx gaskets but no guidelines as to what those HP numbers are.</p></blockquote><p></p>
[QUOTE="MalcolmV8, post: 15065807, member: 8854"] Actually just the opposite. The 1141 L/R are the blue version of the gaskets. They have a thin rubber coating on them and are rated for less HP. Their main purpose is that they will seal on a surface milled as rough as 60 Ra I think it was. The smooth black OEM gaskets, part # 26222PT (right), 26187PT (left) require a surface finish of 20 Ra or smoother as I recall but will hold more power. With that said I've seen people report over 1000 whp on the blue 1141 gaskets. I called Felpro for exact numbers and they won't say. All they will say is the 1141 holds less than the 26xxx gaskets but no guidelines as to what those HP numbers are. [/QUOTE]
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