onaje2004

first off hello to all.

i have been looking to take out the original 400(which i love) and drop a 455 in as a replacement. between me and father we have found a couple of toro motors. if i understand right the 350 mounts would work for it. is there any other issues i will come across with the swap. goin into a 68 442.. thx

MDchanic

Both the 400 and the 455 are big blocks, so there are no differences in external dimensions between the two.

Welcome to Classic Olds.

- Eric

joe_padavano

There are no "350" or "455" mounts, despite what people may call them. There are only Anchor P/N 2261 and 2328 mounts, which only match specific frame mounts, NOT engines. As we've covered in exhausting detail in these pages, if you have a 1968 442 with the original frame mounts, use the 2261 motor mounts for ANY Olds V8.

By the way, this is exactly how the 68 H/O was built.