Quote: There is nothing special about a 413 unless you're restoring a car that had one originally. The 413 is just the same as a 440 but with a smaller bore size. The smaller bore size doesn't have any positive attributes, it just makes the motor smaller and restricts the brething of the valves.
I agree, and the same can be said about a 426 Street Wedge. In fact if you look at the stock specs on the first year 1966 440 all three of them are nearly identical engines except for the different bore sizes. Same 516 closed chamber small valve heads, same low profile single 4 intakes and small AFB carb, same log style exhaust manifolds, etc.
*If you are hunting for "deals" on 413 stuff, buy 65 engines with the original 727 transmissions. As mentioned above, the transmissions are often worth more than the engines, 65 is the only year the 727 case had provisions for either the push button and the lever style shifters.
