New life for an old 340 (stock stroke)

Jadaharabi said

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Summit Racing or Jegs has them.

However how above a 360 (3.58) stroke 340 crank with .060 360 pistons that equals a .020 over 340. Turn that 340 into about a 366. Since your thlnking about a new crank anyway be the same price and you pickup more cubes and more power.

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Well I'm still paying off the block but as for crankshaft I dont have one so I'm looking who's a good source for one when I start the build in december. I have a 318 crankshaft but its cast out of a 69. I'm trying to keep the cylinder walls as thick as I can but I will admit I'm still debating on the build and everything on how I want to go about it