Laser-Cut, CNC-finished flanges for a perfect fit to engine and transmission. .318-inch laser cut steel bellhousing flange with Compatible with Chevy LS engine bolt pattern. .400-inch thick laser cut transmission flange with Muncie/Saginaw 4-speed Bolt Pattern. 7-gauge steel die-formed bellhousing fixture welded to flanges. Includes .115-inch thick engine cover plate that bolts to bellhousing. Also works for aftermarket Richmond and Tremec 5-speed manuals like TKX and TKO. No provision for clutch fork or pivot stud, hydraulic release bearing only. Includes a 1.5-inch hole for hydraulic release bearing lines to exit top of bellhousing. Must be used with a 168 tooth LS flywheel and max 11 inch clutch diameter. Includes block/cover plate and installation hardware. Made in house at Speedway Motors (non-SFI rated) Features a durable black zinc plated finish. If Your LS Swap Plans Include Three Pedals, We Have the Perfect LS Bellhousing Solution When you get right down to the production numbers, as popular as the LS engine has been for GM, it has relatively low production numbers when backed by a manual transmission. Sure, there are diehard enthusiasts out there that order their F-body with a manual, but when you look at pure numbers most LS engine applications (Impala, GM truck, etc.) are either automatic only or have very low manual transmission production numbers. So, when it comes to the budget friendly LS swap everyone loves for their classic GM muscle car, truck, or hot rod, it is tough to find a complete swap source with a manual transmission behind it. Not to mention, a lot of the modern 6-speed manuals don't fit the smaller transmission tunnels of classic cars and can have unique crossmember requirements