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Original Message
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| RE: do early 390 2bbl and 4bbl heads have the same |
| By Mike McQuesten - 11/11/2001 1:31:18 PM; IP 63.50.125.46 |
Since no one is giving you a simple answer on this one, here goes:
Yes, they do. Early meaning.....'58 to ?? But essentially it's true that standard FE heads were the same for 2V or 4V. One exception was the strange application of the C3AE heads in 1963. Essentially they were 406 tri ower heads with the small stanard FE valves but they had a tight combustion chamber that bumped the compression ratio up on the '63 390 to 10.5:1. The '63 390 was still running the dished piston like the '61/'62. But now I've gone completely off your original question about port sizes....even the C3AE I mention had the same port sizes.
Now when you get to 1966.....I'd let Shoe take it from there. C6AE-R & C6TE-G & C7AE-R & C8AE.......you have to start taking notes at this time. |
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