? about that 3.65” crank

rumblefish360 said
Thanks, (obviously) I wasn’t thinking out of the box which I normally at least think about that route for a moment or two. I wasn’t thinking about another manufactures piston ether. Weird because this comes up at work every now and again between the motor heads.

No rods yet. The crank was part of a package deal. The pistons were also included. But there a 4.03 bore size and the crank is for the smaller mains. Being that I have a lot on my plate in front of me to do engine wise, I have not bothered to entertain thoughts on the cranks use yet. I still have 2 more 340 blocks to sonic check for Potential use.

I have in front of me a pair of 340 blocks that are reasonable for use. 1 for the 3.58 stroke crank, 1 for the 4 inch (or 4+) arm build.

I feel your pain! I have a 400" setup (4.100 x 3.79") with oddball (but high end) custom short dished pistons (probably for a long rod boosted application). They use .927" (SBC) pins and 6.200" SCAT rods with a 3.79" crank, so I got a K1 360 main shaft and plan on using it with an (already .060" over) early 360 thick wall block. I paid peanuts for the pistons and rods (both new), so the crank was the hurdle. There's always one big expense or a few smaller ones to complete these "budget" deals, but it's worth it if you are trying to be unique or think outside the box a little. Otherwise we'd take the cheap (SBC) or junky (LS swap) way out. RB