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#1
09-14-2025, 06:09 PM
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63 Lemans 326 Dual Exhaust
what are you using for a drivers side manifold for dual exhaust?
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#2
09-16-2025, 12:41 PM
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I have RA manifolds on my ‘63. It took a little grinding to make the manifold not hit the steering shaft.
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 ‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears. ‘55 Catalina ‘62 Mercury Meteor-all original, bought new by my grandfather 71' GTO -original 400/4-speed/3.23 posi 13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride |
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#3
09-16-2025, 08:56 PM
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I run the RAM air manifolds and they don't hit the steering shaft. They also clear original clutch linkage with ministarter.
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#4
09-17-2025, 06:26 AM
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Do you have pictures?
Last edited by PLongen; 09-17-2025 at 06:33 AM. |
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#5
09-17-2025, 06:34 AM
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#6
09-17-2025, 01:39 PM
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These are mine. My ‘69 400 is out currently, and you can see where I marked the drivers side to take even a little more material off seeing as how my engine is out anyway.
I also run a mini starter.
__________________
‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears. ‘55 Catalina ‘62 Mercury Meteor-all original, bought new by my grandfather 71' GTO -original 400/4-speed/3.23 posi 13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride |
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#7
09-17-2025, 07:47 PM
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Steering shot
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#8
09-18-2025, 08:53 AM
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It's tight but works. what manifold is that?
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#9
09-18-2025, 06:20 PM
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I believe there 69 FirebIrd RA manifolds from RARE.
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#10
02-01-2026, 09:38 PM
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I am told that the left side A body (68-72) RA manifold will not fit this car..
Maybe it is the engine position, I did not build the car. Should the 67-69 F body manifold to the trick? This is a round port head motor so F body pieces will be scarce!
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"At no time did we exceed 175 mph.” Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea... Still have my 1st Firebird 7th Firebird 57 Starchief |
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#11
02-01-2026, 09:55 PM
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Have know idea on round ports, mine are 16 D ports.
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