Hawkman - When you put some heat to the manifold at the shaft locations, give it some shots of penetrating oil like Jerry suggests (WD-40, Kroil, etc.) while it still hot. The heat and cooling of the pieces will help draw the lube in to help break the rust bond. wink


~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)