Lifetime Premium Member
Join Date: Jan 2001
Location: Near Reading PA
I have a pair of 441's on an engine I got a few weeks ago, but they have the small seat tapered plugs. I didn't think the 441's ever had small seats, but rather the large seat plug with the gasket. Has anyone else seen these? The few books I have also say large seat. The heads are 1970 castings. Any input would be appreciated.
69 Malibu. It donated it's ZZ4 to my stepside, so a junkyard 454 is pending. Stay tuned....