Quote Originally Posted by Rich-n-Texas
Okay now I don't know what to do. If I replace ALL connecting rods, the new ones with the old bearings will cause the bearings to break, causing the piston to slap the valve, causing the rocker arm to shatter, bending the pushrod, collapsing the lifter, and causing the cam to snap. WTF man?!?!?!

And I'm not even mentioning what'll happen to the crankshaft.
And that is why a true hot rodder builds from the ground up.

I didn't know engineering has evolved to a point where they design consumer products parts to wear out at the same time and still make it economically feasible but I do admit they are getting better.

Designers identify where the greatest wear or stresses are in a device is and quantify the importance of that part. Some parts are made to be changed out like wheel bearings, brake pads, fan belts etc. It's called maintenance.

Here I was going to open up a used car part business but what's the point knowing what I know now.

Did anyone see the show where they recycled about 95% of a 747. All parts were reused, rebuilt, refurbished and tested before being put back in service. Just saying that most of the parts far outlast the airframe.

Another example, and there is many, is the old Dodge Slant six, the body and interior were literally rotting off these cars and the motor kept on ticking. I wouldn't call that having all the parts wear out at the same time.