Big bore engines are all about the flow, more air in and more air out, anything that slows that down, robs horsepower. The factory M8 intake manifold does a decent job in stock form, but starts getting in the way when trapped between 124" and larger cylinders. The stock polymer unit is also less tolerant of the additional heat that a big bore engine can make at full noise. The solution is the new S&S high flow cast aluminum manifold and a must have for top level performance in the M8 platform.
Features & Benefits
- High-Flow, adds 3–5 hp
- Must have for big bore engines
- CNC Machined
- T6 heat treated cast aluminum
- Replaces stock, plastic manifold
- Includes new rubber seal
- Easy to Install
- Exempt from emissions tampering regulations under CARB EO# D-355-39
DISCLAIMER:
Exempt from emissions tampering regulations under CARB EO# D-355-39
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Solid upgrade
Did this upgrade because I was getting random results from my tunes, found that the plastic manifold was loose and cracked at the mounting bolt. The S&S part is amazing in comparison. Why the MoCo decided to use a molded product here I don't understand. This product is top quality. Did I get a performance upgrade? I don't know, seat of my pants has very little performance noticed. What I really got was increased reliability. Camchest kit is next. That I expect both reliability and performance. .
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Big difference!
I replaced the stock manifold with this, for peace of mind, because of what seems like an inevitable failure of the stock part. The performance gain is a noticable bonus, even without any eagles on it. Great upgrade.
