#1  
Old 04-15-2019, 01:43 PM
tsmith455 tsmith455 is offline
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Default 1974 Formula detailed stock engine pics

I am working on a 1974 Formula 400 with functional ram air, AC, PB, Auto trans.

I am looking for someone who would post some detailed engine pics of an original 1974 Formula 350, 400, or 455 with automatic trans. which shows the correct placement of the vaccum lines running to the carb and themostatic vaccum switch. I am specifically looking for the modulator valve metal line port and the charcoal canister vaccum ports on the carb.

The thermostatic vaccum switch has 5 ports , 4 of which were all capped and the top port pointing up was connected to the vaccum lines on the air cleaner, when I got the car.

Your help is much appreciated!

Thank you,

Tom
  #2  
Old 04-19-2019, 10:46 AM
grd777 grd777 is offline
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This would be nice to see
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Old 04-21-2019, 10:15 PM
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Held for Ransom Held for Ransom is offline
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Tom, I really don't have good pictures. But, the vacuum switch should be labeled somehow, either the metal or plastic versions. I did dig up these though, along with this link.
www.pontiacpower.org/pdf/74ponticemissions.pdf
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Old 04-21-2019, 10:18 PM
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And a picture of the carb fitting.
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Old 10-02-2019, 10:31 AM
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Brad Pringle Brad Pringle is offline
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well done Mike,
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1974 SD 455 TA Auto
1974 SD455 TA 4 Spd
  #6  
Old 10-02-2019, 02:33 PM
tsmith455 tsmith455 is offline
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Yes, these pics were very helpful. Thought I had responded, however doesn't look like I did. Thank you Mike, very much for posting. They were exactly what I needed.

Sincerely,

Tom Smith
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