1974 Porsche 911 Hot Rod “427 V8”

If the term hot rod means “a vehicle specially modified to give it extra power and speed,” then the vehicle up for auction is the epitome of this genre.  Power in this 1974 Porsche 911 Targa (dubbed GT8RS) comes from a Big Block Chevy 427ci aluminum V8.  There’s nothing new about a big American V8 making its way into a vintage Porsche, however, a Targa hot rod such a this, is not something you see every day.  This is a good chance to own a very unique car with some very cool features.


The V8 engine is coupled to a Porsche 930 turbo 4-speed transaxle.  The engine swap was done in 2000 at a total cost of $9,600 along with an MSD ignition box with 7k RPM limiter and kevlar/Ceramic multi stage clutch. The engine was freshened in 2013 (about 3,000 miles ago) including new rings, bearings, 5 angle valve job, and new roller lifters.

This Targa was built as a fast street and autocross car by its original owner in Ohio.  As seen in the driving videos below, the power delivery is strong and linear with plenty of sound coming into the cabin to further enhance the experience.

The exterior is finished in a Black satin paint, giving it a raw and sinister look. To reduce weight, the Targa was converted from metal to fiberglass body panels, which includes: the doors, fenders, spoiler, and trunk. To further reduce weight, the back seats and rear carpet have been stripped out.  The car still retains its original glass windows.  A custom carbon fiber hood with radiator intake cutouts was installed to help the engine breathe more efficiently.

Custom leather sport seats were installed and are in excellent condition. The door panels are finished in orange leather alongside orange seat belts and orange piping. A Prototipo leather wrapped quick release steering wheel was installed.

The 427 Chevy “Big Block Engine” was a 427 cubic-inch (7.0 L) version of the 409 engine used in the 1963 Impala Sport Coupé. This was a special package created for drag racers, as well as NASCAR, made from aluminum body parts and a cowl-induction air intake system. The aluminum body parts were fabricated in Flint, Michigan at the facility now known as GM Flint Metal Center.

This car comes with 2 sets of keys and 10 pages of build and service history.


Auction Results

  • High Offer: No bids
  • Auction End: June 21, 2019, 9:08 a.m.
  • Number of Offers: 0
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Comments (22)

  • Amcgov 4 months, 1 weekago

    @Amcgov *live

  • Amcgov 4 months, 1 weekago

    I lice close to the covered bridge in Wilmington. Could I come look at it, if it’s still available ?

  • RevRon 4 months, 3 weeksago

    @PCARMARKET Sorry to seem so critical but it has become more than annoying to hear all the (presumably) new, "expert" journalists describing collectors or special cars. It is nice to hear about the details, but what good does it do to provide incorrect descriptions? Usually, I just grind my teeth and let these little things slide - only later to see them become established "fact." But this one was over the top, so I commented on it. I don't know how to assure accuracy as that requires knowledgeable, auto enthusiast writers and that seems to be an increasing rarity. In the past one had to be there to absorb the information, or search out rare and obscure books, but today one only has to click on Google. It might be better to say nothing at all than provide "helpful" disinformation.

  • PCARMARKET 4 months, 3 weeksago

    @RevRon Ron, we are very sorry for the confusion. We do everything possible and even more to ensure accuracy of all that is written on our listings. The listings author was attempting to provide some background info on the 427 motor. Feedback is always welcome. Feel free to send any comments to info@pcarmarket.com. We take all communications very seriously. Thank you, PcarMarket

  • RevRon 4 months, 3 weeksago

    @leadfootstyle Thanks for the clarification. The fact that PCARMARKET would spread this disinformation about something which they apparently know nothing is a little problematic, what can we now believe from them? It seems that anyone writing anything these days considers themselves an expert - who cares about truth and honesty. At any rate, good luck with your sale. If it doesn't get over the current bid, I'll buy it myself, even though my wife finally convinced me I need to sell cars, not buy another.

  • Fanosnotfamous 4 months, 4 weeksago

    Bid in the amount of $13,500

  • brokecowboy55 4 months, 4 weeksago

    Bid in the amount of $12,000

  • Fanosnotfamous 4 months, 4 weeksago

    Bid in the amount of $11,500

  • leadfootstyle (seller) 4 months, 4 weeksago

    @burnrubr The engine is not a big block. It is the Sb. Short block 427 alumninum race engine the other person commenting referenced. My info is was a crate engine from 1998/1999 The reference to the Impala comparison I can not comment on as I don’t have that knowledge ...that was added by @pcarmarket. The rebuild sheet included gives more detail on the engine as well.

  • burnrubr 5 monthsago

    hmmm, so what does it really meant here when it says "427 V8" ?

  • RevRon 5 monthsago

    This thing is really wild and may be more fun than my 930 Slant Nose. But somebody needs to clarify the engine here. A 1963 409 and its handful of 427 race cars have no relation to the later "Big Block Chevy." There are no interchangeable parts. That engine, though would be very desirable - and expensive - to someone restoring a '63 Chevy race car.
    However, this engine, based on the intake and port locations is a "Small Block Chevy" (SBC). The 427 aluminum block is a race-only part, as the SBC was never made in that displacement, 400 cid being the largest. The SBC is quite a bit "smaller!" than the BBC, and lighter. Both can be had in all aluminum race parts. The SBC would seem to be more desirable than the BBC, as it is cantilevered out over the 911's transaxle . Gotta' wonder what the weight comparison would be to the 930 Turbo - engine to engine (all aluminum SBC), cooling system to cooling system, and what the power comparison would be Turbo to carb, or Turbo to turbo (SBC).

  • leadfootstyle (seller) 5 monthsago

    @luketesh Thank you "luketesh". This is finding the balance between what is retro Porsche and easily attainable by the everyday man who can maintain it. Ony upside on this one.

  • luketesh 5 monthsago

    I wasn't sure about this at first but watched the youtube videos and this car is actually pretty bada$$. I know some people will get mad that it doesn't have a Porsche engine but this thing is a monster and would eat a porsche snob. good luck!

  • burnrubr 5 monthsago

    Bid in the amount of $10,000

  • burnrubr 5 monthsago

    @leadfootstyle thanks much OP

  • leadfootstyle (seller) 5 monthsago

    @burnrubr It has large aluminum radiator in the front with a manual fan (and automatic) fan setting...if it goes above 180deg in traffic I just flick the fan switch and cools down right away. The previous owner was in Texas..and drove in the heat without issue. Never dragged it.. but with the rear engine and drive...it hooks up nicely. plus handles well.)
    dyno sheet should be in the pics when engine was rebuilt. 530hp 470trq (at crank), so maybe 400+hp at wheel?

    Now 2517lbs – with ½ tank of gas and 7 quarts of oil (2480lbs stock in 1974)
    Weight removed: All four fenders are fiberglass, hood is carbon fiber and trunk/spoiler are fiberglass. Doors are fiberglass. (Contains glass windows all around)

    Weight added. Aluminum v8, radiators in front. New gas tank moved forward slightly. Roll cage in middle adds stiffness.

  • Fanosnotfamous 5 monthsago

    Bid in the amount of $1,550

  • burnrubr 5 monthsago

    Also what HP does she got even ballpark is fine

  • burnrubr 5 monthsago

    I had one before with Renegade parts but just a 350 cid. Any issues with cooling? have u taken it to Cecil to see what it can do? Who did the build? Thank you

  • leadfootstyle (seller) 5 monthsago

    Seller here..... what a blast. Insane car to drive, easy and cheap to maintain. the long tall gears are great, you are above 60 in second gear. this is a hot rod that can handle. carve up the back roads and enjoy the weather with the top on or off. the cage stiffens up the car from this decade. blow away the "air-cooled" and water-cooled Porsches as well. I worked with PCARMarket to include as much detail as possible. Open to any and all questions and will work to respond as soon as possible.

  • brokecowboy55 5 monthsago

    Bid in the amount of $300

  • Ilya 5 monthsago

    This is awesome ??

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1974 Porsche 911 Hot Rod “427 V8”
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