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Old 05-22-2008
Junior Member
Join Date: Dec 1969
Location: gulf coast of MS
Posts: 10
Default piston and rod ?

I have 2 150 yamaha blocks. One has a bad hole, one has a bad crank. Making one out of two is the plan. The question in about the rods and pistons mixing and matching. The rods in both engines seem to be the same, 6R5-10 is the casting numbers. In one engine the rods have a "prefix" of the letter A, and in the other engine the "prefix" is B. Anyone know if the rods interchange?
Also, the pistons have a casting number that seems to be 64D02 in one engine and in the other engine the piston numbers are 64D01..
Any advice would be great.
Frank King
One of the blocks is a 2004, the other block not sure of year model.
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Old 05-23-2008
Super Moderator
Join Date: Dec 2009
Location: Lake Placid, Fl
Posts: 10,359

They probably will interchange but without knowing the model and year of other block it's hard to say.
Yamaha Outboard Parts
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  #3 (permalink)  
Old 05-23-2008
Ray Neudecker
Posts: n/a

Yes they will interchange.
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