Thinking of switching from M1 single plane to LD340 but LD340 would need to be milled to fit. Is it worth it?

JedIEG said
A question on the motor: what Autotech pistons did you use? Were they shelf pistons or custom? How did you like the parts?

Here's a photo showing the pistons and pins I used. Really nice pieces. These got me to around 10.5:1 compression. I went with a Molnar crank and connecting rods.