Anonymous-0
Well-known Member
I acquired a g with pistons that was extended in length. It has the cyclone head with the eyebrow cut back. The head was already on the tractor and the previous owner put a 1 inch dome on the piston. He stated that the piston was very close to beig even with the block. I finished it and it runs nice until it warms up. Then with acceleration it hammers in the crank area. I know it detonating I am only running 93octane right now. What other type fuel would you try? Wonder what the compression ratio is now? Head has not been planed and has a magneto. Thanks for any help.