Kind of a long story. I started with a 340 block that I planned on using. Turns out it was garbage. Bought a 360 short block intending to make it stock. My motor guy said it was a nice looking anchor. Basically a junkyard block with blue paint on it. They took it back, so then lockdown and I could only find the 408 short block. This build has been a nightmare. Thank god I love the car!