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Discussion Starter · #1 ·
Heya folks, have a question or two hopefully you can answer for me. I'm swapping motors from my parts car ('70 GT) into the driveable '69 GT. I plan on changing out just the block, head and header, everything else currently on the '69 is going to be used.

Aside from needing a valve cover gasket, header gasket, intake manifold gasket and the gasket for the piece that holds the thermostat, what other gaskets am I going to need to supply to the mechanic doing the swap? I plan on replacing the seals while i'm at it as well.

Not sure if it's of note but the parts car motor is hooked to a manual tranny (not going to be used) and is going into the '69 which has an automatic tranny in it.

Would appreciate anyone's time listing the gaskets i'm going to need for this project so I can get em ordered. Also, are the majority of these Opel specific gaskets that come only from a supplier such as OGTS, or can they be obtained from a local parts store?

Thanks folks,
Claud

(Doing the swap because the parts car motor has stalide valves and an autocross cam, etc, in it. I'm planning on rebuilding the motor currently in the '69 at a later date. It's original and not set up yet with hardened valve seats and such.)
 

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6,344 Posts
Claud, if your just going to swap engines, drop both engines and trannys out the bottom of the cars and remove and reinstall the trannies and put the engine/tranny assemblies back in. You won't need any gaskets except the intake exhaust gaskets. Unless you change out the water pump and timing gear covers. Then you'll need the gaskets for them. HTH.

Ron
 

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109 Posts
Discussion Starter · #3 ·
Yep, that pretty much sums up what we're doing and how we plan to do it. I'm using everything off of the current, running engine in the '69 though, including water pump. So I guess that's the other gasket i'll need. What about the tranny swap, are there any gaskets involved with that other than replacing the rear seal? Thanks.
 

· Old Opeler
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5,564 Posts
Good idea to replace the front auto trans seal too - the one that seals to the convertor. The flex plate will just swap from one motor to the other but will need its original flywheel bolts as they are usually shorter. Using the longer manual ones can result in them digging into the rear of the block and locking up the engine!

Don't ask how I found this out ............
 

· Über Moderator
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6,767 Posts
I haven't ever worked on an auto Opel. But the 4-speed comes from the factory with a pilot bearing (needle bearing) in the crankshaft recess that the transmission main shaft rides in. The auto does not. Is there a reason for that, or was it just Adam Opel's way of saving a couple of bucks. Er, deutsch-marks.
 
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