Looks like my stock mercruiser manifolds are starting to rot out. What is a good replacement? Don't need anything spectacular, I'm ok with running stock again. Has anyone used the GLM manifolds? Sierra? Thanks
Looks like my stock mercruiser manifolds are starting to rot out. What is a good replacement? Don't need anything spectacular, I'm ok with running stock again. Has anyone used the GLM manifolds? Sierra? Thanks
I have a pair off a 305.
Does anyone know if the Mag/non-Mag manifolds are the same?
They can be shipped, I'm sure.
Randy
I'm a fan of the GLM aluminum manifolds and risers. Supposedly they add a couple of horsepower due to the cast-in runners. Maybe so, but the real selling point is ease of installation! Wrestling the old cast iron anchors out was a bear, but dropping in the new GLMs was a breeze. And besides, who doesn't want to lose 80# out of their stern?
Availability might be a pain. It's been a few years since I bought them, but they were hard to find at the time. Price is maybe $200 more than GLM (Sierra, etc) cast iron units. Part of that you make up in shipping, and the rest from hernia avoidance.
"Speed's fine, but accuracy is final."
- Bill Jordan
1998 Donzi 21LXR
1971 Boston Whaler 13
FWIW, I'm a big fan of the Stainless Marine manifolds. I suspect they are actually close to cost-effective, despite paying the extra up-front.
"I don't have time to get into it, but he went through a lot." -Pulp Fiction
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