Quote:
Originally Posted by NeighborsComplaint
I've had my eye on the Speedmaster heads since Speedway Motors first started selling them. Unfortunately, the CR on a 455 with 72cc heads is over the edge for pump gas. The other thing that bothered me was the Speedmaster Oldsmobile heads are less in demand (assumed) and sell for nearly half the price of the Pontiac. Just rubs me the wrong way. Cost of manufacture is no different, minimum run size no different, R&D costs are amortized over expected sales (I would expect less sales volume for Olds than Pontiac ... maybe I'm wrong?) and inventory carrying costs are the same … why would the Olds heads be cheaper?
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I live in Mich and I use 72cc heads on my 455 motors without problems.
Might have something to do with the cams I use?
GT.