FE engine question

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Mar 30, 2019 | 05:11 PM

Falconman#3

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FE engine question

I have an FE engine with 66 427 on the block (bellhousing side) with no casting numbers. Just curious because cylinders measure about 4.070 inches and I believe that is what a 390 is.

Last edited by Falconman#3; Mar 30, 2019 at 08:25 PM. Reason: Adding information

Mar 30, 2019 | 09:03 PM

NumberDummy

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From: Simi Valley, CA

360/390: The bore is the same (4.05"), the stroke is different. 360 = 3.50" / 390 = 3.78."

Mar 31, 2019 | 07:27 AM

Falconman#3

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Thanks, just curious about the 1966 427 markings and the lack of casting numbers.

Mar 31, 2019 | 09:38 AM

'65Ford

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Any chance it's an aftermarket block? Though 4.070 is smaller than I'd expect for an aftermarket.

Apr 24, 2019 | 12:52 PM

Millam

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From: Tucson Arizona

Some drunk at the factory failed to swap out the mold pieces.
Look on the web for tips on identifying the possibility of this being a 428 capable block.
There is a 428 block for sale on the FeForum that has the 66-427 casting numbers.