Merc 496 Exhaust upgrade on a BBC 454
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Joined: Jul 2011
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From: Long Lake, MN
Hi -
For as much as I have heard about this exhaust upgrade, I have been unable to find advice on the best way to resolve an "oil filter conflict".
The 496 manifold and risers I acquired have a mount for an oil filter and circulation lines. The connector to the oil filter mount appears to be of a smaller diameter than what I have on the 454 setup. The oil lines on the 454 also seem to be noticeably larger in diameter. As such I am a bit reluctant to "downsize" to what came on the 496 (and the ends that connect into the engine also appear smaller so I may have compatibility issues here ....but I won't know for sure until I dive in and start disassembling). Maybe this sizing difference doesn't make a difference and maybe the oil line connectors are compatible with the 454 female side of this connection and if so great. But, at the same time, I've been looking for a creative way to secure the oil filter mount from the 454 to the 496 manifold. I am simply not seeing one without some custom fabrication though.
I tend to think I am overlooking the obvious here, else I probably would have found a thread discussing this.
Any advise on how to resolve this?
Thanks in advance!
- scott -
For as much as I have heard about this exhaust upgrade, I have been unable to find advice on the best way to resolve an "oil filter conflict".
The 496 manifold and risers I acquired have a mount for an oil filter and circulation lines. The connector to the oil filter mount appears to be of a smaller diameter than what I have on the 454 setup. The oil lines on the 454 also seem to be noticeably larger in diameter. As such I am a bit reluctant to "downsize" to what came on the 496 (and the ends that connect into the engine also appear smaller so I may have compatibility issues here ....but I won't know for sure until I dive in and start disassembling). Maybe this sizing difference doesn't make a difference and maybe the oil line connectors are compatible with the 454 female side of this connection and if so great. But, at the same time, I've been looking for a creative way to secure the oil filter mount from the 454 to the 496 manifold. I am simply not seeing one without some custom fabrication though.
I tend to think I am overlooking the obvious here, else I probably would have found a thread discussing this.
Any advise on how to resolve this?
Thanks in advance!
- scott -




