I'm pretty sure mine is an earlier type 454. I have the timing cover off at the moment, so the numbers there will help identify it won't they?
I want to stick with a standard exhaust port height, as my car has been converted to RHD, and trying to find extractors to fit it is a mission. I have a brand new pair of extractors already and they match up fine to the exisiting 454 heads. I was just thinking the 502 heads would be hardened valves etc already, and make it a little kinder to unleaded fuel.
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68 BB SS Camaro - building it in Australia, where everything costs twice as much as it costs in the U.S.
Fuel prices suck!
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