[chuckies76ta]

Originally Posted by Brewster

Your right about the mirror, its just like the heat shield which should be on the driver side and/or fuel pump side.
Weird how he switched the valve cover and the coolant neck but how did he do that with the intake manifold????? even the cables hanging from the stand are opposite!
Charles, what gives?????????

Thanks for your attempt Brewster..

Charles

[x-bird2]

yep, reverse negative, you can see it in the backwards letters on the intake. always loved the letters we'd get when one of those snuck into print in the magazine--usually was an interior shot of an "english" gto or firebird.

[chuckies76ta]

lolololol, I must have looked at those pics for an hour or more..lol Thanks for the explanation, takid455, x-bird2..

Just called my wife to look and still explain this to me as she is a Photo Lab Tech. She said the same as you guys. The negative was scanned upside down.. She still had to explain that process to me..before I got it.. Wow, sign of age...lol

Took one last look, Told my wife it still baffles me.. lol

[SD73]

I thought this was an Austrailian SD???

[chuckies76ta]

Originally Posted by SD73

I thought this was an Austrailian SD???

lol

Charles

[x-bird2]

actually ta kid has the rarest of all SDs, the TWIN SD test Mule. those are the two SD engines (with one built to rotate the opposite direction) that were mounted side by side to balance the amount of torque hitting the mounts and keep it from flipping over on its side on launch.

[Brewster]

Wow!!!!!!!! now that would be something for my fishing boat

[Brewster]

Anyone have a four speed and know what the decal is on the EGR valve?????????
My auto is shown here and I thing its the same but at the nats Ricks Formula was there and Scott had put a MD decal which I've never seen before??????????

[SD73]

Originally Posted by Brewster

Anyone have a four speed and know what the decal is on the EGR valve?????????
My auto is shown here and I thing its the same but at the nats Ricks Formula was there and Scott had put a MD decal which I've never seen before??????????

It was the same part number for either, so I wouldn't think there's a difference.

[Brewster]

http://cgi.ebay.com/ebaymotors/ws/eB...1123&viewitem=

Note this item, never seen one for sale let alone with the correct decal. Awesome part and someone should pick it up for there resto>.........................

[Super Duty D]

Thanks Brewster,

That item is on my watch list.........Guess I'll have to bid against everyone on this thread now who needs one!!! LOL!!

SDD

[takid455]

FIRE IN THE HOLE!!!!!!!!!!!!!!!!!!!!!!
WOOOOOOOOOOOO. 23 YEARS IN THE WAITING.
After the routine checking, priming, setting, and rechecks prior to starting an engine, combustion of air and fuel occurred. I do not have the new exhaust installed yet, so this was straight headers. Man what an awesome sound. I didn’t run the engine too long as I don’t have the radiator installed. When I installed a new engine, I always run it for a little without the cooling system installed incase the engine needs to be removed. Just enough to get a little heat built up and to check to see that everything appears to be working correctly or at least not to cause a concern. I must say that this HC-03 cam sounds nasty. I attempted to adjust the timing to at least hold an idle while keeping the revs up to prevent can failure, and this thing does not care for low rpms. I have the timing ball parked right now. I’ll play with it more once the cooling system is installed so I can bring the engine up to full temp. Initial oil pressure registered just above 80 psi on the stock gauge. I guess the SD pump does pump at a higher pressure. Then again my 400 w/ a melling DS45 pump does 60 psi on initial start then drops to 40 when hot. I have to tidy some things up, but for the most part, the engine is pretty much done. Over time, I’ll gather the ‘correct’ parts to replace the old looking (egr, zinc plated switches, rear carb vacuum tee, ect) and ‘incorrect’ appearing parts (plug wires, vacuum hoses, stickers, ect). I had a question where some of the wires went, but figured that out. The one connecter with a black and a tan wire goes to the A/C system which did not come on this car. I guess they used the same harness. I ran though the gears to see if the rest of the driveline had any issues. None so far. So, I will say another SD is up and running and soon to be terrorizing the streets and giving me thrills.









I would like to see if anybody has any pictures of 74 SD cars’ engine bays w/ the air cleaner removed so I can get so good views of the wiring, vacuum and clip layouts.

[superdutybob]

Engine looks pretty good!

Vacuum hoses should be color coded
Fuel line should have insulation on it.

See pictures I posted for you in your other topic.

[Norwood]

Brew, SHHHHHHHHHHHHHH

[toomanybirds]

Before you guys get too excited about the EGR valve on ebay, you should know it is only truly correct for a 74 SD-455 manual trans car.

It is listed in the 1983 GM parts book for 73 SD-455, but this is a superceded part number. The original and correct EGR valve for 73 SD was a different number, I don't have it in front of me, but Brewster could look on any of his 73 SD cars for the correct 73 number.

So if anyone with a 74 SD-455 manual trans car is looking for a NOS EGR valve, this is the one. But again, it is not correct for a 73 SD.

It would not even look correct as the vacuum hose fitting points forward on the 74, but it points up and backward on the 73.

[toomanybirds]

BVZ, maybe you missed this. It was post #1263 in this topic.

Originally Posted by toomanybirds

Before you guys get too excited about the EGR valve on ebay, you should know it is only truly correct for a 74 SD-455 manual trans car.

It is listed in the 1983 GM parts book for 73 SD-455, but this is a superceded part number. The original and correct EGR valve for 73 SD was a different number, I don't have it in front of me, but Brewster could look on any of his 73 SD cars for the correct 73 number.

So if anyone with a 74 SD-455 manual trans car is looking for a NOS EGR valve, this is the one. But again, it is not correct for a 73 SD.

It would not even look correct as the vacuum hose fitting points forward on the 74, but it points up and backward on the 73.

[spb350]

I was wondering, I just bought some SD parts one of which I was told is a SD starter, (see pic)is the SD starter different (part number) or is it just the fact it has the heat sheild? how do you tell the date? Also what is the earliest approx build date for the 73 SD carbs, mid NOV end of Dec. etc etc. Thanks

[Lloyd-TX]

OE '73 SD starter would be an 1108495. OE '74 SD starter would be an 1108500.

I've forgotten the date code sequence though.

[Brewster]

Toomanybirds, is correct and the numbers are different then mine which are: MH 7040175
256 2

Good eye on the positioning of the vacuum line because they are opposite from each other. Bob, looks like a killer x-mas gift for Momma to get for you! I'd call her but I dont have her cell number???????????
Got to work together brothers

Takid455, Looking good, and keep us updated on progress. You have all winter up there since the roads are bad for you too!

[spb350]

Lloyd, thanks for the info. I checked mine and it is 1108500 it also has a 3 A and a 6 8. Would one of those be the daye code? Thanks