Thoughts on 390 engine performance? 1968 Mustang GT - Page 3 - Ford Mustang Forum
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Not sure why anyone would not use a 390 if its an original 390 car. Scat makes some awesome stroker cranks that are a drop in deal,do some head work decent carb easy 450 hp I race a 67 mustang in c/sa 3090 lbs 10.84 by best et... thats a stocker... give me a stroker crank bigger cam...... you get the pic ....LOL
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Nice, that sounds pretty impressive. If you wanted to make the GT 390 a canyon carver, would the engine's weight just absolutely prohibit this?

Also, you mentioned racing with 450 hp, do you use the car as a daily driver? If so, what kind of MPG are you getting?

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Umm..my 390 car hasnt been a street car in a long time although i own a 1968 car with a 428 that is around that 450 number i put maybe 6-8 thousand a year on gets around 14 mpg but.....370 gear loose convertor, big carb wasnt concernd with mileage.:nogrinner as far as a crawler motor i think the fe is just tooooo heavy even with aluminum heads really any big block i think ( just my opinion )
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Interesting. GM *cough* made their ZL1 427 completely out of aluminum and it weighed only 500 lbs--about the size of a Chevy 327!

If you were to construct such an engine completely from aluminum, I think the results would be quite interesting.
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shelby automotive makes an all aluminum fe bet i would have to mortgage my house to own one !!
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Originally Posted by diamond engine View Post
shelby automotive makes an all aluminum fe bet i would have to mortgage my house to own one !!
Is it really that expensive???

I mean I figured they're not a dime a dozen, but dang. How do you think it would behave in terms of weight/handling/power output?
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power output be the motor cast or aluminun is the same its the weight savings..... which also is better handling ( less nose weight)
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Ah, I see that is interesting. Reason I ask is because the ZL1 427 engine was completely aluminum, and allegedly produced over 500 hp--now at what cost to MPG I'm not sure, but I guess it was the actual engine architecture that did it.
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