Originally Posted By Cab_Burge
Originally Posted By 1969383S


A-Bodies were "S" block builds. (Machined off Left side rear engine mount ear and drilled bosses at the oil pump for left side mount, chrome covers and oil breather.) Hemi Orange

RR and SB were "H" block builds (Normal Engine Mount ears no drilled boss at the oil pump.) Hemi Orange





Me thinks your confusing the M code 1969 A body 440 mounts with the H code 383 A body cars, the 440 had the oil pump bosses drilled and tapped, the 383 did not scopeThe A body 383 blocks from 1967 to 1969 had two bosses cast into the driver side block that where drilled and tapped for the block steel motor mount to bolt to, no cast in motor mounts ears machine off either shruggy
I've had two 383 A body cars that where original and seen several original M code 1969 440 A body cars, there are differences in them on the block machining and exhaust manifolds shruggy

Also my 69 RR 383 block has those cast bosses for the mounts used in the a-body's .