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Is this crank factory Nitrided and Cross Drilled as used in L78 applications? I purchased a 6223 crank off ebay several years ago that was Nitrided (Gray color) but the Mains were not cross drilled. It was a factory GM crank.
I did cross drill it on my Bridgeport Mill since it was used in an L78 application. ![]() Paul
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70 Camaro LA Z-28 03B Citrus Green LT-1 M-40 3.73's 69 Camaro X-77 Z-28 10C Cortez Silver M-21 3.73's Deluxe Project X - SOLD 69 Camaro X-77 Z-28 01B Garnet Red w/Black top, M-20 3.73 Deluxe Houndstooth |