| As we went into before , from an engineering perspective cast iron CANNOT be welded in a conventional sense . Those that claim to do it are uninformed and wrong . When cooling it always leaves high thermal stress next to weld melt and it will crack . Whether it remains “ half stuck” on mechanically is totally misleading . It is not welded . I don’t doubt sincerity but it can’t be done no matter how skillful , with a welder on a bench . It can be “ welded “ if the whole thing is white hot in a gas oven specially built from fire brick shaped to hold it and then arc welded with cast iron rod in the oven while white hot which means “asbestos like “ suit and gloves. Then it cools over 4 hours in sand as if just cast . . Stitch and weld in California can do this for about 1000 . I did that on one out of desperation 4/5 years ago that was cracked across the heat riser box. Came out perfect . Gas braziing with it red hot and a big flame May be more fruitful , there are specialty alloys for trying that . Braze is much lower temp to melt it . It us very strong but May not “ bite” the cast iron , like soldering . I have fixed those with broken ear by drilling a hole higher up , about an inch for a stainless 1/4 “ through bolt from inside and fabricating a flat stainless metal piece like a flag on a stainless 1/4 threaded rod that hangs down and then acts as the other bolt on exhaust head pipe flange . That works . And unlike brazing etc cannot break off . So many of us lose ex manifolds due to ignorance of muffler guy hanging head pipe or devein worse whole system off manifold then pulling on it . Extreme care is needed . Maybe our # 1 guy Bob M adds something informational about this to his litany of VERY helpful info . Related to this , many ram manifolds wee saved ( hey, a cool thing!) but no one saved the special exhaust . I bet there are ten rams stored for someday , per ram stored with an exhaust too . If going stock , ram intake is useless without the exhaust . Goes to B block headers , and question of do 62 headers fit 60 ? TTI lists for 62 swb and C body , but not 60 . Would love to know answer . They do not know . Sent from my iPhone On Aug 10, 2022, at 11:56 PM, 'mark love' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
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