Quote:
Originally Posted by boodlefoof
No, I've got it. I had just taken it off to check to see if the block was tapped for 2 or 4 bolt mains. Are the splayed caps a substantial improvement over factory 2 bolt caps?
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Yes, but not necessary for a 500-600 HP street engine.
I wouldn't do anything more than use a stud kit to better secure the 2-bolt caps.
Substantial improvement at a very substantial added cost, you'd likely spend $800 or more to obtain the splayed caps and have the machine work to install them done properly. Honestly at that point for just a little more money you're really better off buying an aftermarket block that has all of the high strength features and upgrades.