[dustinls1]

i am actually a GM man but i am building a 331 stroker for a friend i need advice on what works and what dont. we are going with a 331 so the rod ratio wont be to bad, so it will last longer. i want to go AFR heads becouse the heads make or break an engine.well any help or telling me where to find info will help. you can also write me at slim-ls1@hotmail.com

[1slo5.0]

Do a 347 right away. That extra 16 cubic inches is worth it. Don't buy into that rod to stroke ratio bullshit. There is absolutely no truth behind it. A 347 is not any weaker than a 331 or anything else. They don't have oil burning issues either which is another myth. A big block Chevy has a 1.533 rod to stroke ratio and a 347 has a 1.588. Does that mean a big block Chevy is less reliable than a 347? A Chevy 400 has a 1.484 rod to stroke ratio.

Buy an Eagle cast steel 3.4 stroke crank, Eagle 5.4 I beam rods, forged pistons if the engine will see nitrous or a blower otherwise use hypereutectic pistons if the engine will be naturally aspirated, TFS R series or CNC ported 185cc Twisted Wedge heads and the proper EFI or Carbureted intake. Pick out a good cam that will match the combination and will also depend on what he wants out of that engine. It doesn't take much to make 500 horsepower with a 347 and it will be plenty reliable. I've built many of them.