512 B build almost complete

80fbody said

If the heads were the same but smaller chambers, Edelbrock would not have reduced their cost so all that makes no sense. Very easy to have valves stocked for each head. No different than the 1000 different valves they probably have to stock for all their other production.

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I've worked in manufacturing almost all of my working life - I seriously doubt Edelbrock is going to stock a slightly less expensive, slightly heavier valve in the exact same length and head diameter for use in their slightly cheaper cylinder head. Don't understand your thinking on the smaller chambers? J.Rob


p.s. Then again the whole world is upside down so maybe Edelbrock is backwards enough to use a different valve that costs a nickel less for a smaller chamber better cylinder head.