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Q4 Head From Factory Race Dept.

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Old Mar 11, 2026 | 12:02 PM
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11971four4two
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MOTORHEAD
 
Joined: Feb 2011
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From: minnesota USA
Q4 Head From Factory Race Dept.
Extensively Modified
Last Run With Carburetor
Made 300HP





sitting on my coffee table...The WARDEN Aint Gonna Like The Car ****
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Old Mar 26, 2026 | 06:21 PM
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Battenrunner
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Very interesting. Any flow numbers, can specs, Dyno results, or more pics of complete engine with Carb?
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Old Mar 26, 2026 | 06:56 PM
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11971four4two
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MOTORHEAD
 
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From: minnesota USA
I have 7 pages of flow bench data and the cylinder head. That is all that remains.
Sad to say the custom made intakes went to scrap and no pictures...
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Old Mar 26, 2026 | 08:32 PM
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Battenrunner
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That?s a shame about the intake being scrapped.

Would like to see the best flow bench data.
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Old Mar 27, 2026 | 05:42 AM
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11971four4two
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Charts From Quad 4 Testing...






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Old Mar 27, 2026 | 08:29 AM
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fleming442
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From: Mt.Ary, MD
That's very cool! I have a soft spot for Quad4s, having had one in the early 90s. A built Quad4 is one of those things I'd love to build, but very low on priority. What are you asking for it?
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Old Mar 27, 2026 | 08:51 AM
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11971four4two
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MOTORHEAD
 
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From: minnesota USA
Here is ad in parts 4 sale arena. The cylinder head still resides in our living room.
Q4 Quad 4 Cylinder Head From Oldsmobile Racing - ClassicOldsmobile.com
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