Universal stock engine case. Dual relief with stock bore. Our new case is the latest AS41 version and features a medium pickup tube. For Stock 1500-1600cc replacement or can be modified for hi-performance and racing applications. Magnesium Alloy Cases Weigh 25LB Includes 8mm case savers and a oil pickup tube Bore: Stock Engine: Type 1 & 3 Material: Magnesium. You will need to block the Type 3 dipstick holeEngine Case Magnesium Stock Bore for 8mm Studs