Dirty Dingo Big Block Chevrolet 8.1 Conversion Swap Mount Adapter Plates

Made by Dirty Dingo, these Big Block Chevrolet 8.1 conversion mount adapter plates are precision laser cut from high carbon 3/8" steel. Designed with 3 different mounting positions: the original bell housing position, a position 5/8" forward, and a position 1 1/4" forward from the original bell housing position — positioning the truck 8.1 oil pan to clear most cross members.

Direct bolt-in for 1958-72 3-bolt style Chevrolet motor mounts. When using these mounts with 1973-and-newer clam shell style mounts, the steel outer shell may need to be modified. Includes all necessary zinc-coated grade 8 bolts.

• Sold in pairs, left and right included
• We recommend using the stock 1 ton truck oil pan
• Will require notching the front cross member if using an industrial oil pan

BUT WAIT THERE IS MORE!

OBS Revival Parts has found this to be a great option for Duramax swapping your OBS. There are not many options on the market and what is out there is great, BUT we used the DD-EM-81 and stock 7.4 Vortec mounting brackets and engine mounts to mount the LBZ Duramax and Allison 6-speed in our 1993 C3500 Crew Cab longbed dually because we wanted the best solution and best quality mounting bracket possible!