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Our Bubble Top Aluminum Engine Case fits Type 1, 2 and 3 applications as it a universal style case. The universal case has mounting points for a rear cross bar and it has a Type 3 dipstick hole which will need to be blocked off for applications not using it. The case is bored out for 90.5 or 92mm pistons & cylinders and is clearanced for up to 86mm crankshafts. The all new engine case includes a large style oil pick up tube. A stock metal cam plug can be used as can aluminum o-ring versions.
Bubble Top engine cases have a raised roof and a radius design to add stregth and clearance for larger cranks. The bellhousing of the case is also filled in behind cylinder #3 for additional strength over stock. The aluminum engine case is drilled and tapped for a full flow oil system and includes plugs for capping them off as needed & the main oil galley is tapped for easy cleaning. 6 shuffle pins are added on the main bearing saddles for a tighter fit and more durability and the case has 8mm case savers installed for the cylinder head studs.
Engine Case Style | Universal |
Oil Passages | Dual Relief |
Material | Aluminum |
Intended Piston/Cylinder Diameter | 90.5mm, 92mm |
Case Cylinder Bore Diameter | 96mm |
Crank Clearance | 86mm |
Case Saver Threads | 8mm |
Displacement with 69mm Crankshaft | 90.5mm - 1776, 92mm - 1835 |
Displacement with 82mm Crankshaft | 90.5mm - 2110, 92mm - 2180 |
Full Flowed Oil System | Yes |
Machined for Pulley Sand Seal | No |
Main Bearing Saddle Shuffle Pins | Yes |
Orders under $100 cost a flat-rate, $11.95*
*Contiguous United States only. Excludes Hawaii & Alaska.
If you need express shipping, please call us for expedited shipping options. We will try to consolidate as much as possible to offer the lowest shipping rates.
Alaska, Hawaii, Puerto Rico, APO/FPO, & US TerritoriesFor orders to Hawaii, Alaska, APO/FPO, Puerto Rico and other US territories, we will provide you with your shipping options and the costs via phone. The shipping costs for these orders are billed at the time of shipping.
International ShippingWe do not ship internationally. We only ship to the USA and it's territories.
You can return most unused, never installed, like-new items for 90 days from the date of receipt. Items must be in like-new condition.
The following items are final sale:
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