Need help identifying a crank and rods

[james berry]

Well bought a banshee with a blown motor, Upon disassembly I see Hot Rods ck158b rods and hr 204 crank how do I find out what I have?

 

[james berry]

I've read that the old hotrod cranks said 204 were stock stroke. New ones are 4mm. The 158 means its got long rods. If the cyls were still on u could measure the stroke and know easily. 54mm is stock. 58mm is a 4mm

Thank you for the info Im trying to figure this out checked the head out and it has been milled but I will know for sure tomorrow when I measure the domes as I am a machinist so I can at least do that. So i could bolt the cylinder back on since they are ruined already. Thanks again.