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- The 390 and 427 had identical 4.2328 bores , and Ford made countless millions of the “commodity“ 390 V8 . How was the 428 cheaper to make, and why was it needed to supplant the 427 (en)
- Find a reliable source (en)
- this is a blog. Do you have a reliable secondary source (en)
- A reliable citation establishing that three different *head* heights were produced needs to be provided . (en)
- Please add page number so reference can be verified. I put "page=" in the template, you just need to add the page (en)
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