DaveMcLain said:Very impressive. I have a couple of questions about the valvetrain. How much of a modern roller cam can the stock rockers take? Does the geometry start to get nasty above say .700 lift?
What would make a cam more optimum for the hemi design? How do it's requirements differ?
We did a Boss 429 rebuild for a customer about 25 years ago and I couldn't remember but did the OEM head have the spark plug placed way over to the side like that? It mustn't be too bad if it only needs 28 degrees timing I wonder why they did it that way valvetrain maybe?
When you use a head gasket on a Boss block do you just punch a hole for the oil feed? In the future will it be possible to feed the valvetrain through the pushrods or will an external oil line be required when using the heads on a wedge style block?
Funny, (weird not humorous), that you should mention it; PHR has an in depth article on that EMC engine in their latest issue - May 2010.Have there been any other builds with these heads? It has been awhile since any updates since this thread started.I know there was the EMC build which if PHR didn't do an article on it (they should),I think it would be nice to know about the specs.