Substituting Shelby block for Iron SO

[Turk]

SoutherfriedAlumo

I really can't tell what the longevity of aluminum motors vs. Iron ones are.

There are still 35 year old iron blocks floating around, and still running.
If you call me in 35 years from now we can compare the longevity of the other.
For some reason they line the cylinders with iron sleeves in aluminum blocks. I am going to talk to my builder and see if the reverse will hold up as well.

To be serious for a moment, I don't have a clue. It appears aluminum is the choice of material used for current high tech motors. So, I can only assume it lends itself to better engine design and weight reduction and who knows what else.

In my case I am very content with the material used in probably 90% of all the engines in the world. I am NOT a racer, and I couldn't care less about the ability to squeeze more HP out of a Shelby Block than a comparable iron block. I do like the additional weight.

If I wanted more HP, I would be doing something totally different. If I wanted longevity, I definetely be putting in something else. For me it is a comprimise of what floats my boat. It is authentic ENOUGH, and it is a proven design, that does not take away from the value of the car.

Besides, I won't be keeping the car long enough to worry about how long the damn motor lasts. Who cares?

TURK