RE: Bonkers twin-turbo AK-427 Cobra for sale
RE: Bonkers twin-turbo AK-427 Cobra for sale
Wednesday 3rd January 2024

Bonkers twin-turbo AK-427 Cobra for sale

There's a new deadly snake in town, and it's packing up to 1,000hp


Long before ‘restomod’ was being thrown at anything with traditional styling and a glammed-up interior, there were replicas. A dirty word to some, not helped by those who threw thousands at Toyota MR2s in vain attempts to make them look like Ferrari F355s, but there were plenty of legitimate producers that’d build you a proper replica of a classic car that you may otherwise have been unable to afford. And they’d be put together with modern brakes, suspension and electrics that wouldn't crumble at the first sign of rain.

So no, this isn’t a real AC Cobra, nor is it trying to convince you otherwise. Nope, this one comes from AK Sportscars, a company that’s been building Cobra replicas since 1990 and is widely considered as one of the best in the highly competitive business. Its latest Cobra recreations are based on the company’s own spaceframe chassis and can take Jaguar XJ40 running gear for anyone looking to get a kit together. Most of the underpinnings are bespoke, mind, and those with deep enough pockets can of course have their Cobra any which way they want - which is exactly what the original owner of this example did.

See, this AK-427 may look like any old Cobra replica - and it does look mighty fine in that Le Mans-inspired colour scheme - but it’s packing a little secret. And by little, I mean 5.3-litres of twin-turbocharged Chevy LS V8 glory, outputting somewhere in the region of 850hp to 1,000hp. Even at the lower end, that’s a frankly terrifying amount of power in a car with no roof and wafer-thin fibreglass doors. Good job its underpinnings bear no resemblance to the car it replicates, then, with this example (dubbed ‘Timmy Turbo’ by its creators) based on AK’s more track-focused Gen III chassis. It’ll surely be a right handful, but at least it won’t buckle under all that power. 

Moreover, it's crammed full of modern parts and components sourced from the top drawer. There are adjustable Gaz dampers, AK’s ‘big brake’ upgrade kit with ventilated discs and a 3.27 power-lock differential. The steering, meanwhile, has been sourced from an E34 BMW 5 Series with AK’s own power-assistance, which’ll doubtlessly delivery plenty of old-school feel while being light enough to pull off endless (and inevitable) power slides without breaking a sweat.

Make no mistake, this is no bloke-in-shed operation, as reflected by the swankiness of the interior trim. The cabin’s kitted out with diamond-stitched leather around the centre console and rear bulkhead, while the four-point harness belts tie nicely into the car’s racing-inspired looks. The Smith’s dials look right at home in the middle of the dash, and there’s a big button below them to fire it up - which must surely sound utterly sublime.

Clearly, the attention to detail of the build is outstanding and it’ll no doubt deliver a driving experience unlike any other. That’s also down to the fact that there are no others, this is the only twin-turbo 427 AK has put together and a quick Google search would suggest there aren’t many others (if any) like it on planet Earth. That does mean it commands quite a hefty price tag at £104,995, which is a fair bit more than you’ll spend on a more conventional Cobra replica. But it’s a heck of a lot cheaper than buying a real one, let alone a fancy restomod from a boutique in the depths of LA’s gentrified suburbs. 


See the original advert here

Author
Discussion

LotusOmega375D

Original Poster:

9,361 posts

183 months

Wednesday 3rd January 2024
quotequote all
Been done 50 years ago.


TheAntics

45 posts

172 months

Wednesday 3rd January 2024
quotequote all
Is this off the scale power to weight?

PistonTim

728 posts

169 months

Wednesday 3rd January 2024
quotequote all
Somehow £105k doesn't seem toooooo bad for that!

Definitely be a fabulous weekend car!

georgeyboy12345

4,617 posts

65 months

Wednesday 3rd January 2024
quotequote all
Silly. Too much power. It won’t be nice to drive

Equus

16,980 posts

131 months

Wednesday 3rd January 2024
quotequote all
"based on AK’s more track-focused Gen III chassis"

... which, as a partial backbone chassis with the rear suspension off an old Jag, still make it rather less sophisticated than the Grimaera generation TVR's that were widow-makers with 1/3rd the horsepower. yikes

Boosted LS1

21,200 posts

290 months

Wednesday 3rd January 2024
quotequote all
It would be a very smooth punchy ride until you really hit the pedal. Incidentally I make a wet floor, chargecooled plenum for the LS which would give it even more power. I doubt it needs it though :-)

J4CKO

46,838 posts

230 months

Wednesday 3rd January 2024
quotequote all
Lovely, but cant help thinking 1000 bhp is labouring a point somewhat in a small light rwd car, the original 427 was mental with 400 odd, so may as well double it, and then a bit more for good measure biggrin

I love it but I bet its utterly terrifying and I bet you will end up gingerly giving it quarter throttle, maybe a half, then going home for clean underpants, sticking it in the garage and avoiding looking at it lest it tries to kill you.

Like an LS doesnt have enough torque to break the tyres loose anyway ? so best add two turbos and turn up the boost !

Sort of a real version of when you tune a car in a racing game too much and realise its now undriveable.




anonymous-user

84 months

Wednesday 3rd January 2024
quotequote all
LotusOmega375D said:
Been done 50 years ago.

About 300hp light? Still, I'm sure it would get along the road fairly well... smile I love these old hot rods and really wouldn't give a damn for originality. The car in the article might even drive well with the more modern motor and all of its modifications. Love it, and Cobras in general.

Edit...just noticed the 104k price...that actually seems reasonable!!

Roger Irrelevant

3,389 posts

143 months

Wednesday 3rd January 2024
quotequote all
PistonTim said:
Definitely be a fabulous weekend car!
I dunno if it would though - I'd love a go on a track without many things to crash into as I bet it would be hilarious. But as a driving mortal I think it would be too much for me on the road - I'd be treating the throttle like it had a Faberge egg underneath it, afraid that the slightest twitch will provoke a lurid powerslide into the nearest tree.

Harry H

3,764 posts

186 months

Wednesday 3rd January 2024
quotequote all
J4CKO said:
Lovely, but cant help thinking 1000 bhp is labouring a point somewhat in a small light rwd car, the original 427 was mental with 400 odd, so may as well double it, and then a bit more for good measure biggrin

I love it but I bet its utterly terrifying and I bet you will end up gingerly giving it quarter throttle, maybe a half, then going home for clean underpants, sticking it in the garage and avoiding looking at it lest it tries to kill you.

Like an LS doesnt have enough torque to break the tyres loose anyway ? so best add two turbos and turn up the boost !

Sort of a real version of when you tune a car in a racing game too much and realise its now undriveable.


This.

Absolutely no point. Where's the fun in never going beyond half throttle.

Dr G

15,970 posts

272 months

Wednesday 3rd January 2024
quotequote all
Harry H said:
This.

Absolutely no point. Where's the fun in never going beyond half throttle.
Is "scaring oneself stl3ss" a point?

I think it's a "because I can" sort of a car. Not my bag, but I like that it exists.

C5_Steve

8,919 posts

133 months

Wednesday 3rd January 2024
quotequote all
Assume the trailer to carry the gigantic gonads required to drive this at anything approaching "pressing on" speeds are sold separately?

Amazing to look at but I agree with others, not sure how much fun it'd actually be to drive.

aeropilot

40,675 posts

257 months

Wednesday 3rd January 2024
quotequote all
LotusOmega375D said:
Been done 50 years ago.

And done by Shelby themselves a decade before Rod did it (although the Shelby Supersnakes were twin supercharged rather than twin-turbo'd)

At least Rod did it with a proper engine, rather than using a bloody Chebbie one like in the OP and COB 1 was built using a pukka Cobra chassis as well (sort of) biglaugh

Nomme de Plum

7,050 posts

46 months

Wednesday 3rd January 2024
quotequote all
I wonder how much of that power can actually be put down on the road before traction is lost. There is very little weight over the rear.

I'm not sure I'd be wanting that much power without really good aero.

anonymous-user

84 months

Wednesday 3rd January 2024
quotequote all
Roger Irrelevant said:
PistonTim said:
Definitely be a fabulous weekend car!
I dunno if it would though - I'd love a go on a track without many things to crash into as I bet it would be hilarious. But as a driving mortal I think it would be too much for me on the road - I'd be treating the throttle like it had a Faberge egg underneath it, afraid that the slightest twitch will provoke a lurid powerslide into the nearest tree.
I think LJKS suggested enough is never enough but sometimes more than enough is just enough...if yer gonna be a bear, be a grizzly bear. smile

BrettMRC

6,009 posts

190 months

Wednesday 3rd January 2024
quotequote all
I came across one of these once with the twin turbo Lotus V8 in it, (and that had been significantly tweaked) that was mental.

This must be hilarious! driving

Turbobanana

8,395 posts

231 months

Wednesday 3rd January 2024
quotequote all
aeropilot said:
LotusOmega375D said:
Been done 50 years ago.

And done by Shelby themselves a decade before Rod did it (although the Shelby Supersnakes were twin supercharged rather than twin-turbo'd)

At least Rod did it with a proper engine, rather than using a bloody Chebbie one like in the OP and COB 1 was built using a pukka Cobra chassis as well (sort of) biglaugh
Anyone remember Rod's adverts in C&SC? He'd always have a little narrative at the top which was amusing. I recall one in the mid eighties where he was bemoaning the fact that COB1 cost a whopping £80 to fill up.

LotusOmega375D

Original Poster:

9,361 posts

183 months

Wednesday 3rd January 2024
quotequote all
BrettMRC said:
I came across one of these once with the twin turbo Lotus V8 in it, (and that had been significantly tweaked) that was mental.

This must be hilarious! driving
That was the 212 s/c. From the factory they were stock Lotus 350 bhp.

aeropilot

40,675 posts

257 months

Wednesday 3rd January 2024
quotequote all
LotusOmega375D said:
BrettMRC said:
I came across one of these once with the twin turbo Lotus V8 in it, (and that had been significantly tweaked) that was mental.

This must be hilarious! driving
That was the 212 s/c. From the factory they were stock Lotus 350 bhp.
Yeah, AC never made very many of them as I recall.


seabod91

1,099 posts

92 months

Wednesday 3rd January 2024
quotequote all
Whoever states it has too much power need to log off PistonHeads and hang your head in shame. Just because you can’t handle the power doesn’t mean someone else can’t.

Bet it’s a right laugh lighting the rears up at NSL.

There are many variants from 300bhp to 1000+.

Leave them alone with the “too much power” crap.