Keith Black dome piston set is .005 oversize with a 10.5:1 compression ratio for 1984-up Big Twin Evolution models. The Keith Black 390 hypereutectic...
Keith Black dome piston set is .010 oversize with a 10.5:1 compression ratio for 1984-up Big Twin Evolution models. The Keith Black 390 hypereutectic...
Keith Black dome piston set is .020 oversize with a 10.5:1 compression ratio for 1984-up Big Twin Evolution models. The Keith Black 390 hypereutectic...
Keith Black dome piston set is .030 oversize with a 10.5:1 compression ratio for 1984-up Big Twin Evolution models. The Keith Black 390 hypereutectic...
Keith Black piston set is .005 oversize with a 9.6:1 compression ratio for 1984-up Big Twin Evolution models. The Keith Black 390 hypereutectic alloy...
Keith Black dome piston set is .010 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models. The Keith Black 390 hypereutectic...
Keith Black dome piston set is .020 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models. The Keith Black 390 hypereutectic...
Keith Black dish piston set is standard size with a 10.0:1 compression ratio for 1986-up XL Evolution models. The Keith Black 390 hypereutectic alloy...
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