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Original Message
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| And if you're not correct? |
| By Gerry Proctor - 01/11/2002 1:33:40 PM; IP 208.217.67.251 |
The blocks are by no means the same size. In most cases, the 390 and 428 heads, intake, and rods are the same casting numbers. Excluding the 428 CJ/SCJ, the unique differences between a 390 and 428 are the block casting, the crank, the pistons, and the flywheel/flexplate.
There is a remote possibility that you can bore the 390's 4.05 bore .080 oversize to the 428's 4.13 bore, but there is usually insufficient cylinder wall left to call this a realistic option. You can use the 428 crank to achieve the 428 if, and this is a big if, your 390 block is able to go .080 over.
There are a lot of books available, like "How to rebuild your Bigblock Ford" that will guide you through the mechanicals. |
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This thread, so far...
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