Track Car Shell: 1975 Porsche 911 Slantnose

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The seller doesn’t know much about the history of the slantnose-converted 1975 Porsche 911, but he’s interested in learning more. Of course, he also wants to sell the car, which is suspected to have formerly had a V8 stuffed under the engine lid and is listed at no reserve here on eBay. There’s said to be minimal rust just by the pedal box and while it’s a serious project, it’s more solid than others we’ve seen.

The fender flares are fiberglass and it also features the very 80s side strakes ahead of the rear wheels, which may also aid in brake cooling. The body doesn’t feature much in the way of adornments (aside from the requisite whale tail) but is said to still have some components attached, like the headlight motors for flipping up the converted lamps. The two (or three?)-piece Porsche wheels are a great look, even on a roller like this.

The seller is correct that this 911 definitely had a competitive past, but whether it was track-based or on the quarter mile strip is up for debate. The full roll cage looks serious, as does the Kirky seat. The steering wheel appears to just be a cheap GT assembly, but more important is that the car retains a nice-looking dash with full instrumentation. The question here is, would you restore this back to original condition or simply build a track rat out of it?

Personally, I would just throw originality to the wind and build a resto-mod or some sort of bananas 935 “Moby Dick” tribute vehicle. It’s already got the wide body, hopefully well-executed, and the possibility of dropping in a powerplant larger than the original flat-six is awfully appealing. With no reserve, there’s lots of room for a custom build. Which direction would you take the slantnose 911 in? Thanks to Barn Finds reader Jim S. for the find.

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Comments

  1. DolphinMember

    I don’t see much upside here. The car has a massive roll cage, so isn’t of much use on the road. If it did have a big water cooled V8 in the back, the subframe has been very likely been modified…or worse. The body looks like plastic or F-glas and there’s filler in some places between panels. Then even if you could return it to its track car state as a running, driving vehicle, what you have is a track car. Pretty limited usefulness, but somebody might want that.

    Good luck to the seller, but I wish even better luck to the buyer. I think he’ll need it.

    Like 3
  2. Adam T45Staff

    Judging by the way the roll-cage has been installed, I think that this is destined to spend its life as a track car (if the roll-cage complies with prevailing regulations). It doesn’t look like the engine bay has been hacked about to badly, so returning it to Porsche power wouldn’t be a huge deal. Alternatively (and I don’t know if such a kit exists) you could always look at adapting a Subaru engine to the Porsche transmission. If it could be done, maintenance, servicing, parts and rebuilds for a Subaru engine would be a whole lot cheaper than for a Porsche engine. It also wouldn’t adversely effect vehicle weight. Just a thought bubble that popped into my head.

    Like 2
    • Mark-A

      I’m sure that the Subaru boxer engine has a kit available for fitment to the VW Beetle & the basic setup in the kit would surely be suitable for modification to suit the Subaru motor? Just have to look at the amount of times car builders MAKE IT FIT?

      Like 0
  3. Steve R

    That is not the type of roll cage you would see in a drag car.

    This is the perfect candidate to set up to run track days. It doesn’t make financial sense to start from scratch, especially with a 911. This car would be fun for not much money. A V8 would definitely be the budget option with this car, maybe even an LS, if that’s the preferred power plant I’d go for an aluminum 5.3 from a mid-2000 Chevy or GMC truck. This is the type of car you beat the snot out of at the local road course, if you wad it up into a little ball you part out what’s left then move onto something else.

    Steve R

    Like 1
  4. Lroy

    How fun lets go out of the box. If you build a Porsche your going to have that shorts soiling over stear, typical of these monsters. Lets take the safe approach. I see a front engine 310 hp 4 cylinder ecoboost. Marry this to an Audi a4 Quattro drive line. Track day dream with nice city manners and reasonable gas mileage.

    Like 0
  5. Poppapork

    How about we put a nice AIR COOLED V8 in there? The Czechs have been making them for decades and they did well in an early 90ties supercar….

    Like 8
  6. bobhess Bob HessMember

    With the exception of the large diameter roll bar tubing the roll cage is very close to the SCCA road racing rules and similar to what we have in our own race cars. Wouldn’t want to race it without doing a complete redo of the aerodynamics. As it stands it will fly long before it reaches any racing velocity.

    Like 1
  7. canadainmarkseh

    Never ending money pit. Pass.

    Like 1

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