So you want 2 go Big block...Read this first!

how many 318's have you seen come with a 8 3/4??????

and if you have a 340 car, why would you think of putting a 440 in it??????

Lots of 318 cars came with 8-3/4. My Dart for one, My 67 Barracuda had a 273 and an 8-3/4.

I agree with Joe. You can save money by using a 383 just like I could have saved money by using a 360.

If I was going to go bare bones big block I would use a 383, Hedmen B body headers and a 727.

Figure a running 383 $500
Big block 727 and stock converter $500
Headers $175
exhaust $200

Everything else is the same regardless of what motor is in the car.