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post #1 of (permalink) Old 03-10-10, 03:56 PM Thread Starter
karambos
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Join Date: Feb 2010
Location: Vancouver
Posts: 6
are there different 'types' of 390 block?

I have a 390 in my Tbird and the block is from the sixties, about 1965, I think, but the block is cracked. In an attempt to rectify this, I recently bought another 390 from 1974. It was in a truck, apparently. I wanted to take the pair of engines to a machine shop and get the best engine I could from them.

I called the machine shop to explain my plan and they told me that 390 blocks from 70's trucks had different pistons than the ones from 60's cars. And so my idea getting one good engine from two engines was not going to work.

Is this true? Were there different 'types' of 390 big blocks? I was under the impression that all 390 blocks were the same.

Any info appreciated

~K

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