Super661 HD Muncie Main Case kit

**THIS ITEM  IS IN PRODUCTION**

The Super661 HD Muncie main case replaces the discontinued AutoGear 18-410-002 Supercase as well as older Muncie 1inch style main cases, Kit comes with a new designed sealed front bearing, Redline gaskets, countershaft re-enforcement plug, bronze thrust washers, extended fit countershaft and Zero-Leak fill and drain plugs. CNC precision quality machined case with extra thick mounting ears. Replaces GM case 3885010, 3925660 and 3925661.  Use our billet aluminum or nodular iron midplate, part # 16-6020A or 16-6020  to complete your ultimate Muncie case upgrade. Case has provisions for vents as well as oil cooler lines. Availability :February 2025

• V-Process cast case offers superior finish and strength
• All cases are X-ray inspected to check for voids, cracks and porousity
• Provisions for oil pump return
• Provisions for a case vent
• Machined for thru venting into tailhousing ( using our midplates)
• Smooth internal contours and surface to reduce parasitic drag
• Internal case contours desgned to keep  more oil up front
• Dual side cover dowel pin locations ( use with our billet sidecover )