Questions Regarding Original RT Side Exhaust Header

rfraser

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When Rootes got the MKII/289 engines from Ford, they would have the new carburetor choke tube lines to the carburetor, but why didn't Rootes just use the old MKi/260 lines on the MKII? I don't know how much 260/289 choke tube lines differ. The MKI (Ford C40E-9819-A) and MKII (no Ford #) choke hot air tube/lines have different part numbers, but the breather tube (manifold to the air cleaner) are the same number (no Ford part #).
Why Rootes would go to the expense to make a new MKII manifold when they could have just made a new choke hot air tube? Maybe the Rootes parts book is wrong?

David Franchi

Looking through Bob Mannel's book on Small Block Ford, I found that Ford changed the tube from the exhaust manifold to the carb in 1966 to clear the now squared off valve covers and the air injector system.
Since the part only has a Rootes part number, I would guess that Rootes modified the Ford part to fit the Tiger engine. Other options are possible, but this seems most likely.
Ron Fraser
 
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