As long as you do not have the 470 variant engine. Meaning aluminum block w/ cast iron head. If you have this engine then no you cannot bypass. Any other engine yes.
Seems kind of high. You can buy brand new exchangers for about $400 each. If they froze it may have only pushed the end caps loose, easy and cheap fix (about $30 for each cap). Any competent mechanic should be able to change them out in a couple of hours. As long as you can get to them and do not have to pull the engines.
