74 Duster (318 CI) to 440

i agree with option 2 there. by the time you get a 360 your a good way towards a stroker kit to give the 318 a healthy 390 inches. the sale of the 440 will finish the job with a pair of speedmaster heads too.
neil.
I was looking at the speedmaster sb heads.
Can they be used with stock rockers?.
Those a cam intake , carb could squeeze a bit out of the 318 I assume?
...
Then drive it have fun and Gen3 HEMI it in the future.
( I have done a bunch of LS swaps , so I am familiar with the EFI world too).
Or just LS the dart with a cammed 5.3 I have here lol. ...joking