440 or built 360 71 demon

hwd2 said
Today you also have to look at the fifth digit of the serial number. Now that we know it's a factory 340 car, I would ask owner how long he expects to keep the car. Reason being if he ever sells it, the big $ are commanded by 'numbers-matching' collector cars. Putting big money into something with incorrect engine (or body color) will not net the seller top dollars. Not only that, there is very little interest out there for vehicles built (modified) with one person's preferences.

Another consideration is where and how a car will be driven.
last advice is to keep the car drivable. - lest you regret it on the street.

These cars aren't worth much no matter how you slice it. There are a FEW that are worth more than the rest, primarily factory big block cars. No matter which way you slice it you'll more than likely have more in it than it will ever sell for if you build it yourself.

I'd bet you any day of the week a show winning big block dart will pull the same money as a factory original 340 car. I've seen it and experienced it first hand.

aaronk785 said
I have often thought of going big block in my dart. But then I start looking at cost not so much for the engine but everything to make it fit. 800.00 headers, 200.00 mounts, 350.00 driveshaft, radiator,and so on. By the time I build a big block and buy all the parts to make it work I can build a strong stroker small block that fits in my car much better and weights less.

Might want to check the cost of small block headers vs. big block. 793$ vs. 923$

Motor mounts are 159$ big block conversion vs. 149$ for SB replacement

You need a new guy to shorten your driveshafts. Try 100$.

My small block radiator cools my 440.