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Clearly both "can tear up the streets." But he's not building a vehicle around a motor (which is irrelavent anyway), so forget about body weight and all the other speculative responses. Yeah, sure there are plenty of well built 383's that can beat up on lesser built 440's. But as said above, with COMPARABLY BUILT MOTORS, a 440 will always out perform its little brother...the 383. No?

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Sure it would! Equal parts, tuning and SAME chassis and a 57 cube advantage - VERY unfair, but an advantage. For sake of equality, trade off
57 cubes for 570 pounds LESS total car weight w/383 and the comparison just got a lot closer!! 440's are better to put into a mid to HEAVY chassis due to the torque they produce.

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Why does your 383 car get to weigh 570 pounds less? Maybe a 225 slant 6 in a 1700 pound roadster would be better? 383s typically get better fuel economy than 440s. If that is important to you, then maybe a 383 makes sense. People have their preferences for a variety of reasons; underdog status, sentimental value, nostalgia, etc. Looking at it practically, if the choice is between two engines within the same family (yeah i know, ones a B and the other is an RB) the one with 57 more cubes offers much more bang for the buck. It may take a lot of money spent on that 383 to make up for its displacement disadvantage. The old adage goes " The only substitute for cubic inches is cubic dollars or light weight".

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Thanks for your post. It's what I have been saying all along. 440's are cheaper to build, but not neccessarily the better motor. ANY
motor can be made to run WELL, it's just a matter of preference and how much money you're willing to SPEND, as well as the chassis it's going in. FWIW, 383's have very little low end torque to move an average B-body as well as 440 would, hence the 383 NEEDS gears and some weight trimming to equal the performance. Smaller motors -lighter weighted cars, for example: 340 Dusters, Demons, Swingers and Darts.