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Old 10-13-2020, 10:41 PM
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Tom Vaught Tom Vaught is offline
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Join Date: Dec 2001
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Don, The crank in Marty's 1967 400 block was a RAM AIR IV-SD 3.75" stroke Forged crankshaft.
It was cleaned up by Moldex Crankshaft and I sold it to him thru Moldex.

It was a Kellogg Crankshaft Forging. Similar to the Pontiac 366 cid forged cranks which I still have several of. Unfortunately those 366 cranks, (which are made of the same special material as the RAM AIR IV-SD 3.75 cranks) will not allow a stroke larger than 3.5 inches. Stock stroke dimension was 3.375" (3-3/8 inch stroke).

So Marty P had a very rare Kellogg/Moldex forged 3.75" stroke Pontiac Crank in his engine.

Tom V.

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