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Old 09-03-2025, 12:09 PM
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I was privileged to be part of a conversation last night that loosely touched on the Grand Sport program, and thus it's needs for improved reliability. It was partially due to this engine (as well as the continued refinement of the Mark IV engine program) that led to the development of the M22 transmission.

At the risk of not speaking factually, I was of the opinion this engine was capable of 500-550hp.
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Old 09-03-2025, 12:13 PM
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Of course any good thread is deserving of good pics, just for interest
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Old 09-04-2025, 02:12 PM
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Old 09-06-2025, 05:44 PM
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Of course any good thread is deserving of good pics, just for interest
Ken and Carroll checking out what Roger brought ...?
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Old 09-06-2025, 01:27 AM
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Originally Posted by napa68 View Post
I was privileged to be part of a conversation last night that loosely touched on the Grand Sport program, and thus it's needs for improved reliability. It was partially due to this engine (as well as the continued refinement of the Mark IV engine program) that led to the development of the M22 transmission.

I think there was a story I saw somewhere on that development in a Chev book, maybe one of Allan Colvins?

At the risk of not speaking factually, I was of the opinion this engine was capable of 500-550hp.
They were under rated by for insurance purposes, well known fact. Look at the factory "rating" for the L88's...
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