When I did my complete makeover back in 2009 I found a set for the front engine and fitted them for my cowling before I painted. After trying them the first year in cold temps there was no difference recognized in temps. Oil temps, cylinders all remained the same with or without the baffles. I have never tried them again. It was some significant modifications to the cowling too. I now have plates designed for my oil coolers to restrict the cold air and allow the oil to reach temperature. I never did find any baffles for the rear engines even though they are listed in the parts catalog.
Hey John, I have a set of front cowl baffles for sale 😃
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Herb R Harney
1968 337C
Flying the same Skymaster for 47 years
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