[Bartruff1]

In addition to the cost and how you intend to use the car, you should consider resale. I don't know the market there but in the US a 427 Superformance will sell for about $20,000 more than a 351 or smaller engine in a SC, if you are building a slab side, that is a different story. In any case, you need to have a engine that will protect the value of your car.

You may think that you won't ever sell the car, but you will.