360-383 A-debate...max builds need not apply.

DionR said
You could be right.

I have heard that the 383 was the base motor in some model E-Body, and the 340 an upgrade, but it seems like the 383 was always rated higher than the small block. Maybe just Dodge playing with numbers?

71 Roadrunner base motor was the 383/4 with the 340/4 optional. 1974 the 360/4 caught up
V8-360 4-bbl 4.00 x 3.58 8.4:1 245 @ 4800 320 @ 3600 45-65
V8-400 2-bbl 4.34 x 3.38 8.2:1 185 @ 4000 315 @ 2400 45-65
V8-400 4-bbl 4.34 x 3.38 8.2:1 205 @ 4400 310 @ 2400 45-65
V8-400 4-bbl 4.34 x 3.38 8.2:1 250 @ 4800 330 @ 3400 45-65
V8-440 4-bbl 4.32 x 3.75 8.2:1 230 @ 3600 350 @ 3200