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#1
10-03-2004, 08:32 PM
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How difficult to convert auto to 4 speed on a 74 T/A sd 455.
Brian |
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#2
10-03-2004, 08:32 PM
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How difficult to convert auto to 4 speed on a 74 T/A sd 455.
Brian |
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#3
10-10-2004, 06:54 PM
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Not hard. Lots of parts but virtually all of the Camaro stuff works so don't limit yourself to the Pontiac vendors. My holes were drilled in the frame but untapped. The hole where my clutch pedal rod comes through the firewall was covered by the factory with a plate held in by two screws that are in the same place as the boot that you need. Do yourself a favor and just unbolt your pedals without removing the brace that they attach to. Use the manual trans brake and clutch pedals on the longer manual trans through bolt. This way you don't have to remove the brake booster and steering column.
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71 Formula 433, Splayed cap 400 block, 4" stroke Scat forged crank, 6.8 Eagle rods, custom Autotec pistons. SD 295 KRE D ports, Old faithful hybrid roller, Torker II, Holley Sniper Stealth, Tribal Tubes, TKO 600, 3.73 Eaton posi. |
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#4
10-11-2004, 06:10 AM
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what years are the same as the 74 as far as the 4 speed is concerned
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#5
10-12-2004, 02:34 AM
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70-81 should be pretty much the same. There are a couple of different Z-bars out there but the one I am using is a 2cd gen Camaro V8 repo if that gives you any idea. My throw out arm is the Lakewood one for a Chevrolet as well. 70-71 used different sized pedal pads but are functionally identicle.
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71 Formula 433, Splayed cap 400 block, 4" stroke Scat forged crank, 6.8 Eagle rods, custom Autotec pistons. SD 295 KRE D ports, Old faithful hybrid roller, Torker II, Holley Sniper Stealth, Tribal Tubes, TKO 600, 3.73 Eaton posi. |
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#6
10-18-2004, 01:46 PM
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bj1160, I'm not sure how hard it would be, but it seems like alot of guys on the board have done it. However, if you have an original sd 455 car, changing it from its original auto to 4 speed might devalue the car if you ever plan of selling it.
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#7
10-19-2004, 06:21 AM
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I thoughtn the 4 speeds were more valuable. The auto tranny is not the original.
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#8
10-19-2004, 11:34 AM
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The 4-speeds are more valuable but hacking up an auto, even if its not the original tranny, is going to devalue it big time.
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1971 Trans Am 455 H.O. - Cameo white 1982 Recaro T/A 305 - Black |
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#9
10-19-2004, 07:30 PM
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What has to be hacked up.
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#10
10-19-2004, 08:55 PM
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The shifter opening is a lot larger and shaped differently in the 4-speed cars.
If yours is originally an auto SD car, simply putting in a 4-speed will not change that fact. If resale value is what is most important to you, SD cars hold the most value when restored with their original options. Tim.
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69 GTO 400, 4-Speed, Matador Red 69 SCJ Mach 1 Mustang, 4-Speed, Drag Pack 72 Trans Am, 455HO, 4-Speed, Lucerne Blue 73 Trans Am, SD-455, 4-Speed, Brewster Green 73 Formula, 455, 4-Speed, Ascot Silver 73 Formula, 455, Navaho Orange Survivor |
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#11
10-21-2004, 02:33 PM
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bj,
What I was reffereing to is that an sd that is factory correct is going to be worth a considerable amount more than one that isn't. Therefore, if your car is original such as block heads, and an auto tranny, they swapping in a 4 speed is going to devalue the car a great deal. However, if your car has already been modified from its original factory conidtion, i.e. was a 4 speed and someone tossed in an auto, then switching back isn't going to make much of a difference value wise. the thing that is important with a car as rare as an sd is staying factory correct if you plan on selling it down the road ever and getting more than you paid for it. |
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