So, I purchased a new baffle with insulation & pin off an online vendor for a decent price VS from dealer and other online outlets.
I've been explaining to many over the years about the make up of these baffles, including the secondary burn holes at the rear under the angle pc on the bottom rear. For those who don't know, the secondary fanning flames at the rear of the baffle are as intended by design. There are secondary holes/ports back there made exactly for this purpose. I could not get a good shot of all of them, but got a shot of one port near the end, and they span across the baffle along the rail.
The B body also upgraded from the top baffle blanket & cover shield to an insulation board.
Aside from the usual front face, front bottom, and center row of secondary ports drilled into the baffle, they added two additional side rows of ports along side the center row of standard ports down the bottom center.
Note, the baffle is bowed at front upward at center, from the factory. I don't know if this is intentional or not.
The rear seems to have a slight bow in the other direction.
There are also 3 added supports between the top plate & bottom plates of the baffle. These are tabs between the two plates at the rear of the baffle, most likely to help with separation between the two plates, and maybe helps with sagging .
The side rail blankets also come with the kit, the way it is shipped is not the worst, but not the greatest. One blanket is full thickness, the other is compressed and flattened some. The new rear baffle gasket was folded at the thin area, and is weakened and separation at the layers there. I have materials I purchased off ebay to make additional rear baffle gaskets, that cost much less than the OEM gasket.
Hope this answers some questions, and gives some insight into the Summit baffle system.
I've been explaining to many over the years about the make up of these baffles, including the secondary burn holes at the rear under the angle pc on the bottom rear. For those who don't know, the secondary fanning flames at the rear of the baffle are as intended by design. There are secondary holes/ports back there made exactly for this purpose. I could not get a good shot of all of them, but got a shot of one port near the end, and they span across the baffle along the rail.
The B body also upgraded from the top baffle blanket & cover shield to an insulation board.
Aside from the usual front face, front bottom, and center row of secondary ports drilled into the baffle, they added two additional side rows of ports along side the center row of standard ports down the bottom center.
Note, the baffle is bowed at front upward at center, from the factory. I don't know if this is intentional or not.
The rear seems to have a slight bow in the other direction.
There are also 3 added supports between the top plate & bottom plates of the baffle. These are tabs between the two plates at the rear of the baffle, most likely to help with separation between the two plates, and maybe helps with sagging .
The side rail blankets also come with the kit, the way it is shipped is not the worst, but not the greatest. One blanket is full thickness, the other is compressed and flattened some. The new rear baffle gasket was folded at the thin area, and is weakened and separation at the layers there. I have materials I purchased off ebay to make additional rear baffle gaskets, that cost much less than the OEM gasket.
Hope this answers some questions, and gives some insight into the Summit baffle system.