1967 Ghia Questions

[nsmngr]

All - It's been a while since I've had a project VW and been on this site but I recently purchase a 67 Ghia. I have had a couple bugs and Type III's but this is my first bug. Sorry if some of my questions are redundant with other posts but i have tried searching the site and haven't found the answers. Here are my questions:
1. There is no bottom backseat in the car but does have the back. I am used to having a frame but the back seems to be plywood covered with mohair and the original upholstery. Is this correct? Is the seat bottom also plywood? Could I just make my own?
2. What motor do I have? The stamp on the motor says H0370174. Is this the single port low compression 1500cc? I need to get some parts but want to make sure I'm ordering parts for the correct motor.

Appreciate your help!

[rcooled]

The rear seat (both backrest and seat sections) should be upholstery material over foam padding mounted to a plywood base.

Pics from the gallery of a reupholstered rear seat in a '64 coupe. A '67 would look the same.

That engine # is within the range of those put into '67 Ghias. It was originally a single-port 1500cc, but if it's ever been rebuilt, it's now most likely a 1600cc. 1500cc pistons & barrels are not easily sourced, whereas 1600cc sets are commonplace.
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'63 Ragtop (current)
'65 Ghia coupe (totaled)
'67 Ghia convertible (current)
'69.5 Ghia convertible and
'62, '63, '65, '69 Bugs (all long gone)

[nsmngr]

Awesome! Thanks for the info!

[jeffrey8164]

This is the bottom of my ‘70 seat. It has some contours for the tunnel.
I’ve never seen the bottom of a ’67 but I’d bet it’s similar.
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Volkswagen!
Turning owners into mechanics since 1938.

“Let he that is without oil throw the first rod”
(Compression 8.7:1)

[Era Vulgaris]

The rear seat base also has the metal arch in the center that creates the center bump contour, as seen here.

https://airheadparts.com/vw-part/rear-seat-bottom-half-coupe-143-885-031/

They're out of stock at KGPR, but I'm pretty sure I've seen new bases for sale somewhere else as well.
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Currently own:
66 Karmann Ghia, L390 Gulf Blue, under construction, here: www.thesamba.com/vw/forum/viewtopic.php?t=760505&highlight=
99 Mazda MX-5 10AE, Sapphire Blue Mica, 6 speed, LSD

Previously owned:
98 Porsche Boxster, silver, 2.5L -- 67 Karmann Ghia, Black, 1500sp -- 98 BMW Z3, Atlanta Blue Metallic, 2.8L I6 -- 75 Porsche 914, Laguna Blue, 2270cc -- 72 Porsche 914, Signal Orange, 1.7 FI -- 74 Karmann Ghia, Black, 1600dp -- 74 Triumph TR6 with O.D., sapphire blue

[Teeroy]

Sewfine sells new seat bases
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Pres. Rivercity VW Club www.rcvwclub.org
Founder Derr Wheat Panzers (DWP)
ARR #3
www.autosportsnorthwest.org

[Rome]

The ultimate reference for factory-original correctness of the rear seat would be from the 19,000 original mileage '67 Ghia Coupe that sold earlier this year on Bring a Trailer: