Nothing wrong with a 413, BUT the market has forgotten it. That said, I'm glad the letter cars exist, they were a milestone, and so was the model T ford, doesn't mean I want a T 4cylinder engine. Why pound on a dead horse? IF I could buy pistons for the 413 I have lying in my shop now I would have built it But I'm not going to invest $800+ into custom pistons and still net 30 cubes less then a 440 with $300 pistons, and have shrouded valves from the TINY bore I seriously tried for over a year to FIND pistons for the 413, no luck... It's now donating it's crank to a 446 build. Fire away
Current cars: 2000 Dak Quad Cab, 2012 Challenger,1970 Road Runner, 1994 Firehawk
1966 Coronet post sedan, 1988 Corvette, 2005 Magnum RT all SOLD
Why pound on a dead horse? IF I could buy pistons for the 413 I have lying in my shop now I would have built it 
But I'm not going to invest $800+ into custom pistons and still net 30 cubes less then a 440 with $300 pistons, and have shrouded valves from the TINY bore 
I seriously tried for over a year to FIND pistons for the 413, no luck... It's now donating it's crank to a 446 build. Fire away 
