Some close-ups of pistons and rods. Notice the rusting. Also the pistons have been knurled. This is done to stop piston slap when reringing an engine and
this also probably indicates that the engine has been rebuilt at least twice. The first rebuild would have replaced the pistons with these which are higher comnpression and 0.030 overbore. When the engine got tired after that, a cheap rebuild was performed where the pistons are not replaced again, but rather they are knurled which makes the metal expand, then remachined to remove the sharp edges and reproduce the proper overall shape. Everything shown here is throw-away.
Some close-ups of pistons and rods. Notice the rusting. Also the pistons have been knurled. This is done to stop piston slap when reringing an engine and 
this also probably indicates that the engine has been rebuilt at least twice. The first rebuild would have replaced the pistons with these which are higher comnpression and 0.030 overbore. When the engine got tired after that, a cheap rebuild was performed where the pistons are not replaced again, but rather they are knurled which makes the metal expand, then remachined to remove the sharp edges and reproduce the proper overall shape. Everything shown here is throw-away.
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