
Notes: Non street legal. 4.100" bore. Right hand. MLS bore bead combustion seal. PermaTorque MLS multi layer steel construction.
Notes: Non street legal. W8 with 18 bolt heads. Pre flattened steel wire combustion seal. Steel core laminate construction. Minimal brinelling of aluminum head.
Notes: Non street legal. 4.175" bore. Left hand. MLS bore bead combustion seal. PermaTorque MLS multi layer steel construction.