67 Dart 273 swap to 383

Don't let the BB guys tell you it's better

"The 3.79 stroke with a .040 overbore is 383 cubic inches. The early 360 blocks (71 to 73) will accept an oversize of .080. This is due to the fact that the 340 and 360 shared the production tooling until the demise of the 340 in 1973. The standard bore size of the 340 was 4.040 inches and the 360 was 4.000. You can overbore the 360 to the 4.040 size and still have the material to go to a .040 over 340, or 4.080 inches. There have been successful bore jobs to 4.100 on the early blocks. That would be a .060 over 340"


so you can have a small block 383 with a similar stroke and piston size.

Why wouldn't you!


360 stroker motors.