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Old December 7th, 2018, 05:21 AM
NArias3 NArias3 is offline
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Join Date: Nov 2017
Location: Seal Beach CA
Truck: 1962 1500
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Default 401 swap into '62 1500

Hi 6066'ers-
I'm the proud owner and driver of a survivor 1962 1500 Custom Cab, Long Bed, Big Window 305D-propelled beast. Here's my first post...and probably one that's been discussed previously. I'm acquiring a 401 non-M out of a fire truck and am considering swapping into my '62. Trans is Hydra-Matic.

My biggest concerns are:

1) The 305D flex plate bolting up to the 401. Is the crank flange distance from the block rear surface the same between the two? And, is the crank flange bolt pattern the same?

2) Does the exhaust manifold of 305D bolt up to the 401 without port flow restriction?

3) Any other unforeseen issues with this swap.

The experienced replies to these and any other concerns you can offer will be greatly appreciated. Thanks, Nick.
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