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#1
11-29-2009, 09:28 PM
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And this from a fellow I know and trust:
Had many sets of nos SD piston/pin assemblies over the years and all were exactly what you're saying. Always a different number on the pistons vs the box. Near as I figured is Pontiac cataloged the piston/pin "assembly" a couple digits different than the piston stamp number. I've had them in standard/.010/.030 and all were unmatching stamped # to box part # but always within a couple digits of the "bibles". FWIW. Bottom line is a single trough forged 455 piston with "any" factory GM part number is obviously a 73-4 SD app.
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12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
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#2
11-30-2009, 06:08 PM
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One relatively simple way to tell the difference between a "standard" 455 piston and an SD is to check the skirt by the pin bosses and the width between pin bosses. The standard skirt is flat across the pin boss opening when viewed from underneath, the SD has a slightly hourglass shape to it. gap between the bosses is 1.5 for a standard for cast rods and 1.275 for an SD/forged rods. TRW's number for the single trough SD .030 was L 2423. Have both styles on my desk. the SDs will also have the snap ring groove.
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#3
11-30-2009, 11:23 PM
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My set of SD pistons have 493159 STD. stamped in their top. Hope this helps!
__________________
 When removing an unreplaceable washer, the part will be heard hitting the floor and then vanish from the face of the earth!
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#4
12-01-2009, 05:26 PM
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Thought I'd throw some meat out there,anyone hungry?
http://www.transamflorida.com/ray%20...%2073%20SD.htm http://www.transamflorida.com/ray%20...D%20MANUAL.htm
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1973 T/A Buccaneer Red L-75 A3,83k mi. #'s match 1979 T/A Atlantis Blue W-72 WS6 23k mi.survivor#'s match 1999 T/A Navy Blue 60k mi....babied  1968 442-gone but not forgotten "Oh,you can think about it,.....but don't do it!" Sheriff Bufford T.Justice |
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#5
12-01-2009, 05:32 PM
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Neither link works for me. Anyone else see these?
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#6
12-01-2009, 07:42 PM
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Scroll down to the want adds and proceed from there:
Both cars are #2 cars with standard issues and concerns with a seller that doesnt know one item in their inventory from another. I have contacted and have not received anything valid from someone on this site selling a vehicle. Im sorry but a 15 second video for a 150k car doesn't impress let alone turn the page. Surprised its not on ebay? BOL, Brew |
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#7
12-01-2009, 08:23 PM
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I looked all over that site and can't find the cars in question.
Have they been removed? I did see the '74 SD that was "totally restored".........sure is missing some key detail to that chassis. No info if it's for sale.
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Home of WFO Hyperformance Shaker induction. |
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#8
12-01-2009, 09:44 PM
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the seller fixed the links that he posted, here they are:
http://www.transamflorida.com/ray%20...%2073%20SD.htm http://www.transamflorida.com/ray%20...D%20MANUAL.htm
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'72 Formula 455HO TH400, Revere Silver, black deluxe '74 Trans Am SD 4 speed, Admiralty Blue, blue deluxe |
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#9
12-01-2009, 11:43 PM
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Whats in the trunk ? Or should I say.. Whats not in the trunk?
http://www.transamflorida.com/ray%20...D%20MANUAL.htm Last edited by tajunkman; 12-01-2009 at 11:58 PM. |
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#10
12-02-2009, 12:02 AM
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You mean the vapor cannister that should be in the center of the bulkhead, perhaps?
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#11
12-02-2009, 10:00 PM
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Quote:
 Above photo is from a 1970.  Above photo is from a 1972.  Above photo is from a 1974. Make your own conclusions, but I smell a rat. |
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#12
12-02-2009, 11:12 PM
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I didn't make an observation. I asked a question. I guess it was a $150,000 question?
Nothing against you Larry but, I think you should go look in your trunk. Hopefully it will look like the next 3 pictures..... 1st is my own 73 esprit....  Next is some guy's brewster 73. I found it by searching py......  Below is Year One's brewster green 73 at Restoreamusclecar pulled off their website......  And then there's this 4th one.... 
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#13
12-02-2009, 11:23 PM
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So I was right. The 73s have the vapor canister. Here's some more photos of 71-73 trunks:
White car: 73 SD White 71 T/A White 71 T/A Blue 72 T/A Green Car 73 SD 4 speed, unrestored, original paint Last edited by njsteve; 12-02-2009 at 11:47 PM. |
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#14
12-02-2009, 11:44 PM
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...and a couple more 1970s
What's that famous quote? "Houston, I think we have a problem..." Last edited by njsteve; 12-02-2009 at 11:49 PM. |
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#15
12-02-2009, 01:43 AM
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no canister in the '73 cars.
__________________
Home of WFO Hyperformance Shaker induction. |
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#16
12-02-2009, 08:22 AM
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DOH!
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#17
12-02-2009, 10:08 AM
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The auto has been detailed since the axle, leaf springs have been painted and for a low mileage car makes one wonder???????
The manual cars trunk has been re-sprayed and notice there are NO springs showing threw the holes to the rear-seat which is way wrong telling me the interior has been redone some where somehow??????? Both cars look pretty solid though and would love to see them in person. Anyone in the area to review???????????? |
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#18
12-02-2009, 10:33 AM
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I talked to him yesterday about the stick car and he said he had a offer of 150 for the car. In this market if it was my car I would take it.
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#19
12-02-2009, 02:08 PM
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Quote:
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#20
12-02-2009, 02:29 PM
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Thats his asking price so I would think he would except it?
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