just a cheap option to throw out there. you can replace the bearing and run it. it's been printed before, but my 78 had toasted (as in completely gone) crank bearings and one journal of the crank was worn bad enough to have a groove sticking up to fill the oil path on the bearings. we ground the crank with emery cloth til it was smooth, slapped standard size bearings back in (no need to plastigage, there's no way it would register). i ran nothing less than 20w50 oil and it was a daily driver for three years before head issues and lack of money to fix them were it's demise.
i drove it from illinois to colorado towing a loaded 5x8 uhaul trailer and drove it to and from the ranch where i lived to the one i worked on (about 28 miles each way), in to ft collins at least once a week (another 35 miles or so, one way), and down to denver (probably close to 60 miles or so, one way), every weekend to see my parents...lower end was never my problem. point is, i was not easy on the rig.
also, look in the 40 section for romer dizzy conversion. his distributer walked and locked the engine. we did the same thing, he never had an issue again.
if you've got the money and really want it to be correct, then go for it, this is just a possiblity if you're looking for a quick easy cheap fix
i drove it from illinois to colorado towing a loaded 5x8 uhaul trailer and drove it to and from the ranch where i lived to the one i worked on (about 28 miles each way), in to ft collins at least once a week (another 35 miles or so, one way), and down to denver (probably close to 60 miles or so, one way), every weekend to see my parents...lower end was never my problem. point is, i was not easy on the rig.
also, look in the 40 section for romer dizzy conversion. his distributer walked and locked the engine. we did the same thing, he never had an issue again.
if you've got the money and really want it to be correct, then go for it, this is just a possiblity if you're looking for a quick easy cheap fix