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Originally Posted by 82ACAUTOCRAFT
Also, aluminum is not great for threads which are usually weak compared to iron. For a street motor, aluminum does not have great advantages except for bragging rights. I think iron is better for durability!
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So, if you're so committed to your beliefs, why in the hell did you start this thread?
You cite the Rover (nee Buick) arruminum motor as having problems...I'll go one better and cite the Vega motor. Course, in those days we didn't have computers or the internet.
Since then, most, if not all mfgs have been using aluminum motors for production cars...which go through a bit more in their lives than we can put on Cobra motors. Most race mfgs, in every series of racing, now use aluminum.
My own opinion...most folks end up sleeving iron FEs, they are getting more difficult to find in good shape, the really good ones are as expensive as new aluminum blocks, the aluminum motors tend to run cooler, you can run slightly higher compression on pump gas...and the list goes one (including being lighter where it counts...up front).
If you don't want aluminum, then by all means, get what you want...you evidently have already made up your mind, so why start a thread asking for opinions?