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Re: Which engine did you swap to and why?
I swapped out a tired wheezy 307 for a 400 small block. Why? More torque and power with a package that would (mostly) fit in with the same brackets and such as the previous small block. At the time I wanted to upgrade to a big block but the added cost of the engine itself (got the sb400 for $150) and all new brackets, etc. put it well out of my then budget. If I had it to do again now I'd seriously consider an LS.
The 400 has run like a champ once I got it to run cool, but it is definitely a truck motor (came out of a mid-1970s Blazer) and while it has nice torque down low, it has no top end at all being all done by 4500 RPMs. While this is more than adequate for a truck, it would be fun to have more of a hot rod engine. I went REALLY conservative on the cam when I rebuilt it, I'd make a somewhat different choice now. A set of heads and a different cam would be fun.
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