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

General Information

Name
Sylvia
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. I pulled the tired engine and had it rebuilt to a 2.0L by Bell and Gaines in Modesto, CA. Other than the wheels and the non-functioning 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 bought this car as my first project in September 2019 when I was 17. I had dreamed of owning an Opel ever since I learned about them as a kid.
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Car Show Board:
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Before/During/After engine rebuild:
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Rebuilt front end suspension:
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All original red interior, sunroof, white headliner: (Seat covers and headliner will soon be replaced)
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Modifications

Drivetrain
- "Brand new" 2.0 liter, high compression head, high compression pistons, everything that can be replaced is brand new.

3 speed automatic transmission
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Interior
- All original, minus the radio + speakers

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

The seats and headliner will be redone sometime soon
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Exterior
- Front Air Dam
It was already on when I got the car, and I am planning on repainting it so it's actually the same color as the car :)

I'm considering putting the correct Rallye side stripes back on

Custom black + yellow CA Legacy plates - "N7470B", which is a tribute to my late grandfather.
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Audio
- Aftermarket radio and custom speakers behind the back seat/under the rear window that don't work. The wiring is butchered. Haven't gotten to it yet.
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Exhaust
- OGTS Shorty Header, stock exhaust, original Rallye twin pipe
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Suspension
- Completely rebuilt front suspension using KYB shocks and polyurethane bushings from OGTS
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Wheel and Tire
- 13" Panasport/Minilight style wheels, 185/70R13 Kumho Solus TA11 tires

Comments

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Registered
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114 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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Registered
Joined
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1,083 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
Joined
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114 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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