An article in "Road and Track" circa 1990 did a good write up about this.
Welders have been heating their lunches in boxes welded around the exhaust pipes of their rigs for decades.
My wife and I regularly cook on our engines.
On top of everything, it is "free" energy.
What it comes down to is this:
Older, more wasteful V-8s cook best. (The old Cobra cooked the best)
Exhaust is the hottest, then heads, intake is nearly wothless heat wise.
Newer I-4s basically reheat and that's it.
Her old Volvo 240 had a heat shield around the exhaust manifold that with a little tinkering held 2 baked potatoes perfectly.
Veggies in foil work well.
Reheated biscuits will make people jealous, the butter smell carries for a good 20-30 feet.
Pork loin juice will make you loose your mind looking for an oil leak (yeah, wasted an hour on that )
Basically if you can bake it, wrap it in foil and wedge it behind the exhaust. Make a heat shield scoop and dinner will stay put better.
Your double cam cover might hold a bowl of oats or grits......... just have to find a bowl that fits....... one of those silicone ones maybe?
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