07 Suzuki GSXR 750 Engine in running condition for PARTS OR REBUILD. Engine will currently run but there is evidence of interference between #4 piston and head. See last picture captured with a bore scope in #4 cylinder. Engine has NOT been disassembled to diagnose exact issue. Approximate compression numbers are 165, 165, 165, 130 psi. Engine is sold AS IS for PARTS OR REBUILD. We do NOT recommend running engine in its current condition.