2v rod bearing question!!!

[mineralgrey01gt]

I'm having some trouble with my rod bearings in what is suppose to be a MMR 5.0 stroker motor but I'm not sure it is. Are the rod bearings bigger on an oem crank and smaller on a stroker crank? The bearings I ordered are for a stroker crank but are much smaller than what came out of the engine originally. I'm the first person to go into this engine and just need to clear this up.

 

[coposrv]

Do they use a re-ground coyote crank for their stroker cranks? What does your crank measure at?


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[bdcardinal]

Not sure what brand crank/rod is used on that combo, but on Summit they list a Scat forged stroker crank having 2.000" rod bearing while a standard stroke crank takes a 2.086" rod bearing.

 

[mineralgrey01gt]

This is a Manley stroker set up. I'm not sure what the crank measures at. Where would I measure the crank at for that? I can build these things but new to measuring and all this stroker stuff

 

[bdcardinal]

Use a micrometer and measure the rod journal. The rods should be a different length, so measure the centers of the big and small end.

 

[coposrv]

Measure the rod journal on the crank. assemble a rod with the new bearing in it and measure that.


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[mineralgrey01gt]

We got it figured out. The rod bearings I have are the right ones. They are a better bearing that it came with