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1973 351C 4V Exhaust Manifolds


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Got my exhaust manifolds cleaned up in preparation for installation back on the engine for my Mach 1. 

RH: D0AE-9430-G with casting date of 3F19 (June 19, 1973)

LH: D1ZE-9431-BA with casting date of 3F23 (June 23, 1973)


This car was built 7/5/73 so these casting dates line up nicely with the build date of the car.

The RH manifold apparently had a tendency to crack over time so I was happy to see that mine had no evidence of cracking.  These manifolds are in amazingly good shape for being 44+ years old.





73 Mach 1 Blue Glow/Argent Q Code C6 Auto

73 Mach 1 Blue Glow/Argent Q Code 4 Speed

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Wow. Very nice. The factory 2v cast manifolds also crack on the right side as well. I happen to have a cracked on in my parts bin.

73 Grande H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.


- Jason





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