426 Hemi

The spacers were used to help Chrysler meet a "new" rule that was put in place to try and keep them from competing in the superstock classes with a Hemi car.

The rule stated something like, "...no engine nor engine parts shall extend above the stock hood line." The spacers were used to raise the body just enough to keep the carbs under the factory hood line. Of course, the rule was later rescinded, for being ridiculous and biased, but that's the history of K-member "spacers" in A-body cars.

As Bob noted, you won't know until you start positioning everything. You are probably ahead of the game however, since the early B body cars are narrower than the later models. Let us know how it works out.

I'm mounting a hemi in my 68 A body car right now, and I was lucky to find the now OOP Doug's headers designed specifically for the A-body Hemi swap.

Southernman