Anyone out there with any time using Merlin - x heads? Im very curious to know how the big ports and tiny chambers work? I am a fan of smaller chamber size versus spinning a heavier piston. Any info would help.
I have kicked these around in my head for some time. The only real advantage is the lighter piston, and possibly a better flame front. They don't really flow all that great compared to other shallow valve angle, conventional siamese/common wall port heads.
When they first came out there were some geometry issues when using stud mounted rockers, which was a "selling point" for them then. They took them off the market, re-designed the rocker area. They require shaft rockers now, and I guess the geometry issues have been resolved.
I still haven't ruled them out, but that ONE motor would be the bastard in my engine pool. I like being able to move parts around between different engine combos.
But I would still like to try a set.