Quote:
Originally posted by 93SVTstang
I was almost convinced that the 4.6 was the way to go with their smooth revs, great power curves, smooth shifts, and the fact that they come in cars with much better ergonomics until I found out that their durability can't shake a stick at a 5.0. Almost everyone I know with a 2v 4.6 has blown theirs up some way or another. Two of them had nothing but exhaust and they blew out rings with relatively low mileage-one at 70K miles, and the other at I think 40K miles. Granted these cars were driven hard, but my '93 Cobra was driven just as hard and NEVER broke, and never gave me a lick of trouble. The 5.0's may seem to have more problems due to their old age, but they are much harder to break, will take just about anything you can throw at them, and parts are much cheaper. On the other hand, a 2v 4.6 will take lots of $$$ to go just as fast thats why you will see so many people run a stock 99-up PI motor with a Bullitt intake and superchargers because anything beyond that costs way too much to build. So my vote is with a 5.0 or a 4v 4.6, I wouldn't waste any time with a 2v. Just my .02
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I'd have to disagree with that. My car has 95K miles, over 600 passes down the track and absolutely zero problems with the motor. The majority of these passes are on slicks doing 6K RPM launches. I just recently hurt the tranny...reverse of all things locked up. There are plenty of cases of long term 4.6 2v use. In stock form the 5.0 will take better to power adders (durability wise) due to the pistons but the 4.6 in stock form makes much better power. Not to mention the stock 4.6 block can well into the 800 HP range versus the 500 HP that a 5.0 block will start cracking. There are good and bad things about both but durability is not one of them.
Bill