Description
BMW M20 3.4L Bully Engine Build by 5150 AutoSport MCIVN 1400S making them the go to choice Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers making them the go to choice for those pushing their BMW N20 to its limits perfect for long days at the track or a spirited drive through the backroads