413 Wedge
A 413 is basically just a small bore 440. Same raised deck, cranks and rods are interchangeable, as are heads and intakes. Piston selection sucks. I'm pretty sure what Hughes offers (unless they've updated their selection since the last time I looked) are low compression cast replacement pistons that will end up .080 below deck at TDC. If you have a 440 and a 413, it would make more sense to build the 440, both for the extra 27 cubes and also much better piston selection. However, if, like me, you already had a running 413 in a car you bought, a set of .050 milled Edelbrock heads will bump the CR up to the mid-9's, and a decent street cam, RPM intake and headers should easily give you - I dunno - 425 HP??
A 413 is basically just a small bore 440. Same raised deck, cranks and rods are interchangeable, as are heads and intakes. Piston selection sucks. I'm pretty sure what Hughes offers (unless they've updated their selection since the last time I looked) are low compression cast replacement pistons that will end up .080 below deck at TDC. If you have a 440 and a 413, it would make more sense to build the 440, both for the extra 27 cubes and also much better piston selection. However, if, like me, you already had a running 413 in a car you bought, a set of .050 milled Edelbrock heads will bump the CR up to the mid-9's, and a decent street cam, RPM intake and headers should easily give you - I dunno - 425 HP??
