71RESTO Gearhead Posts: 1320 From: Oregon, USA Registered: Oct 2000
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posted 03-21-2001 10:04 PM
Does anyone know if there is any difference between stock exhaust manifolds for a '71 351C 4V and a '73 351C 4V Cobra Jet for a mustang? Need to change my '73 exhaust and due to the lack of availability and cost for 4 speed headers I am thinking of putting stock manifolds back on.------------------ Duane 71 Fastback (under resto) 73 Mach 1 M&M Member #730
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SteveLaRiviere Administrator Posts: 42859 From: Saco, Maine Registered: May 99
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posted 03-22-2001 09:11 AM
They are the same. The Boss 351 is different; the exhaust flange is larger. You need D1ZE-9431-B or BA, {left} and D0AE-9430-B or G, {right} Be aware that right side 351C 4V manifolds are very prone to cracking. ------------------ '72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc '94 F-150 XL 5.8L/E4OD/3.55 Limited Slip '97 Probe GTS 2.5L Disposable Commuter "Keep your driveway all Ford!"
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