Need advice: 318 or 340 for a 68 Dart?

Madsci, there is something wrong with you on the fundamental level.

madscientist said

You would be the ONLY engine builder/tuner/dyno guy that thinks this. It is FACTUALLY wrong.

20 inches won't guarntee you squat. A 340 engine will always make more power than the 20 CID bigger chevy copy. If it doesn't get a new builder.


To the OP...build the 340. Just don't weld it into the car. You can always take it out.

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His post is actually more correct than not though in a general manor rather than exacting. The two pronged problem here is the different size engines are the just different in there configurations.
The second one is you personally. You keep making a reference to the 340 vs. some Cheny engine half the time.

If a bigger bore that equals 20 cubes doesn't get you more HP, then why recomend a 330 over a 318?

madscientist said

I could quote a half dozen well know people who would disagree with most of this post.

Go look up the RPM range for a 1971 340 and the RPM range for a 1971 360 and get back to us.

HINT: they are the same so you don't need to "twist" the short stroke big bore engine tighter.

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Then there is something wrong with the people you know since dyno graph's are readily available to prove otherwise.
Trying to prove your right with engine power curves from stock engines? Seriously?

You have this habit of talking smack and spreading B.S. While turning threads into shyst shows. Your arguments turn into bashing anyone how disagree's with you with child-ish remarks.
It's no wonder your making peoples ignore lists.

Argue your point like an adult and move on.