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Showcase cover image for DO'Brien's 1974 Opel Manta

General Information

Year
1974
Make
Opel
Model
Manta
Color
White
Packages
Rallye
History
It is a mostly original white 1974 Manta Rallye with a 3 speed automatic. It has had one respray in its original color, it has a newer 1969 cylinder head, and the engine block is very tired. It has only ~55,000 miles on it, but compression was at 110, 110, 85, 110. I just pulled the engine out to bore it out to a 2.0 liter and do some modifications (like the OGTS Shorty Header, etc.). Other than the wheels and the broken aftermarket radio and speakers, everything else is original - the whole interior (seats and headliner will soon be redone), sunroof, and it even has the original, albeit somewhat crusty, rubber trunk liner.
I have no clue how many owners this car has had. It has a salvage title, but I'm not sure how it got that. It has very little bondo from what I can tell (tiny bit where I think it was dented in the front left fender), and the only trace of rust is in the battery tray, which has been dealt with.

I bought this car as my first project a few months ago when I was 17. I had dreamed of owning an Opel ever since I learned about them.
1974 Opel Manta (White)

Modifications

Drivetrain
Engine currently removed for rebuild

Soon to be completely "brand new" 2.0

Also planning on respraying the engine bay while the engine is out
Interior
All original

-Sunroof
-Red seats + door cards
-White headliner
-Rallye Gauges

The seats and headliner will be redone sometime after I get the car driving
Exterior
Front Air Dam

It was already on when I got the car, and I am planning on repainting it so it's the same color as the car :)
Wheel and Tire
Panasport-like wheels. Not entirely sure what brand

Gallery

Comments

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32 Posts
Very nice car!
Thank you! I definitely got lucky finding it. I can tell it was extremely well taken care of for most of its life, at least up until the last owner or two got to it and destroyed the engine 😬 I'll be posting pictures of the "brand new" 2 liter soon, and the Manta will be back on the road in no time :)
 

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1,010 Posts
Yes It looks nice ,,,good luck w/the rebuild..My brother Doug and I brought Mark Paar's 75 FI Manta to AZ and show it regularly. It gets positive feedback. Our 1.9 also has low compression of 100 on all cylinders. I have purchased one of Charles Goin's 2.6 engines that he expects to be ready in 6 months. That should make it run as good as it looks. Are you going to the Manta 50th in Calif. at the end of April?
 

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Registered
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32 Posts
Yes It looks nice ,,,good luck w/the rebuild..My brother Doug and I brought Mark Paar's 75 FI Manta to AZ and show it regularly. It gets positive feedback. Our 1.9 also has low compression of 100 on all cylinders. I have purchased one of Charles Goin's 2.6 engines that he expects to be ready in 6 months. That should make it run as good as it looks. Are you going to the Manta 50th in Calif. at the end of April?
I am 100% making it to the 50th Anniversary trip! I'm beyond excited for that :) The engine is being built by Bell and Gaines in Modesto, which was recommended by Gil at OGTS. They just ran it yesterday and wow, it sounds amazing... They're now converting it to electronic ignition and I'll try to pick it up soon. I bet that 2.6 is going to be awesome! Sounds like that car will be fast
 
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