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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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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