Topic: Need a new piston?

[dperl]

Anyone know where to source one for '77 A? Will '77 K work?

[05c50]

My 77A is running piston's from a 77K. When I bought it, the cylinders were rusted and the pistons were seized. The pistons are working fine.

.......Paul

[stikman]

You can replace all the A pistons with K pistons, but not just one.  The compression ratio is apparently higher on the stock K pistons compared to the A pistons and replacing just one A piston with a K piston will likely throw your engine out of balance.  Sorry for the late reply.

[754]

Get a k piston and mill the top...