Re: 1954 Evinrude 7.5 hp pistons
I would be looking for another block or a parts motor, as oversize pistons are going to be VERY scarce for that motor. Those motors were inexpensive enough in their day, that most people opted for buying a new motor rather than boring out the cylinders and rebuilding it. That, and generally the rods let go before the pistons wore out - and twhen the rods went, so did the block (usually) which made the motor non-rebuildable.. I think you'll find that using another block, etc. will be both cheaper and easier in the long run.<br /> Your motor used the same block as the '55. The '56-'58 Johnson or Evinrude blocks are very similar, but the recoil boss in the rear is in a different spot. Might be able to make one work. Also, you'd need to use your '54 intake manifold and cylinder head on the '56-'58 block. <br /> About two years ago I rebult my '55 Fleetwin and found a parts motor on eBay for about $25. They're out there and not uncommon. Try your local marinas, too, as often they'll have a bone pile somewhere with misc. carcasses, etc. Good luck!<br />- Scott
