mechanical humanoid 3d model

1. The X-Axis (Length & Bolt Spacing)Cylinder Bore Pitch: The center-to-center distance between each spark plug well is exactly 91.0 mm.Fastener Pattern: The mounting bolt holes on the 1270363 cover align precisely with the gaps between the spark plug wells. Your structural centerlines for the M6 hold-down bolts must sit exactly at the 91.0 mm, 182.0 mm, 273.0 mm, and 364.0 mm marks relative to the center of Cylinder 1.Overall Length Constraints: The aluminum valley of the B5234T4 head is roughly 455 mm long before it hits the timing belt gear shield.2. The Y-Axis (Width & Oil Cap Placement)Channel Width: The flat floor of the recessed spark plug valley on the B5234T4 valve cover is 112 mm wide. The plastic cover features a subtle flare on its upper edges to overhang the aluminum cam humps, bringing its total outer width to roughly 120 mm.Oil Cap Offset: On the B5234T4, the oil filler neck is located right above Cylinder 1. The center of the semi-circular cutout on your 3D model needs