FellowTraveler
Well-Known Member
I've found they are a sub-standard substitute for thermal barriers when used in a 6.5td application. I compared my two Suburbans one equipped with a 454 CBB the other a 6.5td the 454 loots like a CSB in the Burbs engine bay while the 6.5td occupied almost all of the engine bay which impairs airflow inside engine bay compounded by the cooling fans rotation with resulting heat buildup heating the pass/side battery.I re-used the battery covers that came with my OEM AC DELCO batteries with my Odyssey batteries. Not sure if they helped or not. I still have them and re-used them again.
Suggest adding a thermal barrier to those covers!