i just bought my cylinders off ebay they are fresh still see hone marks. they were ported by rz or rx racing in north carolina. it is a basic clean up port, most of the work was done on the exhaust side.(no work was done to transfers or boost port) i was told they were good for trails.i am selling to fund a stroker project..i just spent $315 shipped for these i would like to get what i can back out of them. they are powder coated silver.