Originally Posted by Toby
I would go the 351 route since the factory block is stronger. Assuming you are not going to buy a dart block. But if you are then hands down go with a 347 ci 3.25 stroke 4.125 bore.
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I wouldn't build either without a Dart block, I'm not dropping the coin on a forged internals without a strong block. Don't want to have to do it again later if I turn it up.
Originally Posted by SlowGreyGT
Dart blocked 363 with a Brooks kit. If you're going to do it, go big.
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I have been thinking about that as well. But I already have a good blower. Might build it and run the supercharger for a while then drop the coin on a nice single setup.