Gk73 sp engine identification?

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Gk73 sp engine identification?

Post by topfridgeman » Tue Jan 01, 2019 9:59 pm

Does anyone know the best way to identify an sp engine on a gk73 gsxr? My friend has about 6 engines, one of which he thinks is an sp.


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Re: Gk73 sp engine identification?

Post by moforockband » Mon Jan 07, 2019 9:35 pm

They are visually identical. The only way you can check is to pop off the rocker cover and check the cams and rockers/valve springs to positively identify.
But you need to know what you are looking for.

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Re: Gk73 sp engine identification?

Post by Variablevalves suck » Sun Jan 13, 2019 9:52 pm

Also have shorter inlet but you would only be able to see this if the manifold is still attached.
SP only has a short rubber inlet and the non SP has an ally spacer between the rubberone and the head so lengthening the inlet, has a different air box to allow for this.

If you go back to the previous post it lists engine numbers for the SP.

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