I came across these cylinder heads the other night and saw that the owner was affiliated with Jon Kaase in the past. Based on what was printed they look like some pretty nice results for a 427w. Did not know if anyone had used these heads in a build or had plans to do so. With a big 440+ci Windsor these look like they could potentially make some nice power on pump gas using hydraulic roller. I'm not as up to date with what is considered the "best" so there might be other options that are better suited for a street car running pump gas with a hydraulic roller setup but it was a product I had not come across in the past and though it was worth posting
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