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THE LOBBY A gathering place. Introductions, sports, showin' off your ride, birthday-anniversary-milestone, achievements, family oriented humor. |
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#1
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SD Trans Am...short history
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Esquire '74 T/A 455 Y-code SD clone previously on Dawson's Creek: '74 T/A 400 '81 AMC SX/4 '69 FB 350 |
#2
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Good video, but 0.2 in the 1/4 from opening the shaker? Really?
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#3
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Maybe.
The ram air pan and removing the nose piece is .2 on my 65. I ran a flat hood with dual snorkels on my Chevelle for many years and that was worth .2 as well. K
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'63 LeMans Convertible '63 Grand Prix '65 GTO - original, unrestored, Dad was original owner, 5000 original mile Royal Pontiac factory racer '74 Chevelle - original owner, 9.85 @ 136 mph besthttp://www.superchevy.com/features/s...hevy-chevelle/ My Pontiac Story: http://forums.maxperformanceinc.com/...d.php?t=560524 "Intro from an old Assembly Plant Guy":http://67-72chevytrucks.com/vboard/s...d.php?t=342926 |
#4
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That and any Firebird photo to fill the time of the story.
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So long, farewell. |
#5
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I know when mine opens up she sounds like all hell is breaking loose so that's gotta be at least .2 in my mind lolz... 🥰
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Esquire '74 T/A 455 Y-code SD clone previously on Dawson's Creek: '74 T/A 400 '81 AMC SX/4 '69 FB 350 |
The Following User Says Thank You to kingbuzzo For This Useful Post: | ||
#6
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Flipped lid on GTO aircleaner was worth that.
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#7
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I had a ‘67 Camaro years ago that was tuned on the dyno with a typical open element air cleaner. I used to put the stock one back on for car shows, it would always run like crap. No way I’d even try the stock air cleaner at the track so I don’t have numbers for comparison. The 327 would do the 1/4 in 14 flat with the open element.
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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 |
#8
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Not a bad video, thanks for posting. I am currently working on a 73 SD engine. (my first one). The engine block and internal parts are certainly way, way above the regular production 455's of the era in casting thickness, added strength to the weak areas, and much better parts such as pistons and rods. Like the video said, Pontiac was certainly giving the big middle finger to the EPA, and as a muscle car fan, you have to love that. Somehow, it met the emission requirements of the time.
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#9
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Ya it makes for a great story and argument about the SD being "the last musclecar"...
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Esquire '74 T/A 455 Y-code SD clone previously on Dawson's Creek: '74 T/A 400 '81 AMC SX/4 '69 FB 350 |
#10
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Quote:
posted before elseware SD engine Firebird factory vid https://youtu.be/OiARnJXVqJY?t=206
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1984 RX7 Jim Hand style 455 /200 4R Project car 67 White/Gold GTO 4 speed sold, 1968 GTO 4 speed sold, 1969 GTO auto sold, 68 Firebird 400 4 speed (455) sold, 65 GTO Night Watch Blue 4 speed sold, 64 GTO Nocturne Blue 4 speed sold, 71 GTO Gold auto sold. 1975 Formula 400 auto sold. Hopefully to be restored, H-"O" Racing 73 Trans Am SD 4 speed, Sons 70 Formula 400 auto, and wife's 1974 AMX 360 auto, 1975 Jeep Honcho 4x4, 1965 Buick Special post Last edited by 455dan; 02-05-2024 at 07:56 PM. |
The Following User Says Thank You to 455dan For This Useful Post: | ||
#11
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Quote:
The main gate at the Proving Ground still looked like that when I started there in 1986. K
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'63 LeMans Convertible '63 Grand Prix '65 GTO - original, unrestored, Dad was original owner, 5000 original mile Royal Pontiac factory racer '74 Chevelle - original owner, 9.85 @ 136 mph besthttp://www.superchevy.com/features/s...hevy-chevelle/ My Pontiac Story: http://forums.maxperformanceinc.com/...d.php?t=560524 "Intro from an old Assembly Plant Guy":http://67-72chevytrucks.com/vboard/s...d.php?t=342926 |
The Following User Says Thank You to Keith Seymore For This Useful Post: | ||
#12
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Oh I never seen that one...so cool
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Esquire '74 T/A 455 Y-code SD clone previously on Dawson's Creek: '74 T/A 400 '81 AMC SX/4 '69 FB 350 |
#13
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Thanks havent seen that one. I remember modifying my shaker hood scoop with screen wire. Still have the block off plate. The sound initially was loud.
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#14
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They need to breathe too...
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Esquire '74 T/A 455 Y-code SD clone previously on Dawson's Creek: '74 T/A 400 '81 AMC SX/4 '69 FB 350 |
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