Nitro motor

[2rawcoop]

Can anyone tell me what size motor this is. I think it says SL? That's all it says is OPS on one side and ? On the other. Thanks you guys.

 

[olds97_lss]

Could you maybe back the camera up a bit so it's not so blurry and show the entire side of the engine?

OPS is the brand. Not sure what the "SL" signifies. Looks like they put the ci size on the side of many of their engines, like the 60 and 45.

 

[2rawcoop]

Thank you for taking time to read this. I just bought a new rod for it and it was 29mm long. Thanks. Tim. "no numbers anywhere" It might be a 5L

 

[Heisenburg]

Measure the bore and the crank stroke. Multiply the 2.

 

[2rawcoop]

Thanks buddy, I didn't know it was that simple. " Lean it out! It's a fine line ". hehe.