Quote:
Originally Posted by Econman
Don't forget that stock Vortec heads will only handle .470 max lift without modification. The valve guides must be cut down. Good luck with the build!
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Indeed! I should have mentioned... I intend to run the Comp Cams 26981's. I hear that these are good to .53 without doing any machining. I'm not counting on it. Once assembled, I intend to have the machine shop measure my maximum lift, and will respond to their findings accordingly. Thanks for the luck, I'll need it! Hopefully I'll be back with dyno numbers some time in the early Fall (want to do a chassis dyno to dial in the timing and fuel once the engine is installed and mated to my SM420).