Chevrolet unveils ZZ632 crate engine – 10.4 litre NA V8 that makes 1,004 hp and 1,188 Nm; on sale next year

Back in 2018, Mopar launched the Hellephant, which is a HEMI 7.0 litre (426 cubic inch) supercharged V8 crate engine that delivered 1,000 hp and 1,288 Nm of torque. Not wanting to be outdone, Chevrolet recently announced its new big block V8 crate engine that makes slightly more power.

Called the ZZ632, the engine is the biggest and most powerful in General Motors’ (Chevrolet’s parent company) history, generating 1,004 hp at 6,600 rpm and a peak torque of 1,188 Nm at 5,600 rpm. The latter is inferior to the Hellephant, but keep in mind that there’s no forced induction – turbocharging or supercharging – in play here.

Instead, the naturally-aspirated engine relies on displacement alone, of which there is plenty of that at 632 cubic inches, or about 10.4 litres in the metric world. The manufacturer says all eight intake and exhaust ports of the ZZ632 have the same length, volume and layout so each individual cylinder produces similar power – fuel is fed to the eight cylinders via eight port injectors and CNC-machined high-flow aluminium heads.

Chevrolet unveils ZZ632 crate engine – 10.4 litre NA V8 that makes 1,004 hp and 1,188 Nm; on sale next year

Chevrolet says the ZZ632 shares the same cast-iron engine block with the lesser ZZ572 (572 cubic inches or 9.4 litres), but with increased bore and stroke. It also gets four-bolt main caps, a forged steel crankshaft and connecting rods as well as forged aluminium pistons, hydraulic roller rockers and a 12.0:1 compression ratio.

The company adds the engine will generate its four-figure outputs on 93 octane petrol, so there’s no need for fancy E85 fuel. Chevrolet also noted that the engine will be reliable, as prototypes of the ZZ632 were subjected to 200 simulated drag races on a dyno without issues. No pricing has been announced yet, but we’re told sales will begin in early 2022.

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Gerard Lye

Originating from the corporate world with a background in finance and economics, Gerard’s strong love for cars led him to take the plunge into the automotive media industry. It was only then did he realise that there are more things to a car than just horsepower count.

 

Comments

  • John Gagal on Oct 25, 2021 at 3:48 pm

    No torque dip like Campro engine ?

    Like or Dislike: Thumb up 2 Thumb down 5
    • Unknown on Oct 25, 2021 at 10:13 pm

      At such high compression ratio, even campro kosong can outpace to 60kmph of this snail.

      Like or Dislike: Thumb up 5 Thumb down 2
  • Brian on Oct 25, 2021 at 3:53 pm

    There is no replacement for displacement.
    But USA should make up their minds, one post below talks about the growth of Tesla EV but otoh here we have fuel guzzling big block NA fire breathing monster that poke a middlefinger to all those Tesla owners out there.

    Like or Dislike: Thumb up 10 Thumb down 1
  • mirage on Oct 25, 2021 at 4:30 pm

    americans are lucky there is no JPJ there.

    If not cannot change engine that is too big difference in cubic centimeters (CC). Also always repeat the VTA laws when they themselves dont understand that aftermarket modification has zero relation to VTA law (which is only applicable to car manufacturers, not car owners).

    Like or Dislike: Thumb up 2 Thumb down 5
    • Unknown on Oct 25, 2021 at 10:18 pm

      You got yourself confused, any car have to be homologated to UNECE regulations which a part is only relate to VTA approval. Which is why crate engine phenomena only works in USA where they follow different laws & regulations. If you want to blame someone, blame the UNECE committee for trying to keep idiots like you safe from hazardous cars. JPJ is merely the implementer of the law and the law is clear.

      Like or Dislike: Thumb up 7 Thumb down 1
    • Aura89 on Oct 26, 2021 at 1:13 am

      Nothing to do with luck nor JPJ. The Americans simply don’t follow UNECE ratified standards for automobiles.

      Like or Dislike: Thumb up 2 Thumb down 0
  • Koenigsegg does 1700bhp with just a 2.0. Ah these American engine with their never-ending displacement war.

    Like or Dislike: Thumb up 1 Thumb down 3
    • Afeeq Hasan on Oct 25, 2021 at 8:03 pm

      You also realize Koenigseggs are million dollar cars? Think before commenting.

      Like or Dislike: Thumb up 2 Thumb down 1
      • We’re talking about engines here not the whole car if you van stay within context.

        Like or Dislike: Thumb up 2 Thumb down 0
  • Akibat on Oct 25, 2021 at 6:50 pm

    You might want to clarify if it’s 93-octane AKI or RON.

    The US uses the AKI rather than RON which Malaysia uses. AKI averages MON and RON values to get a figure for knock-resistance that takes more conditions into account.

    Like or Dislike: Thumb up 2 Thumb down 1
    • ronakimon on Oct 25, 2021 at 9:43 pm

      At 12.0:1 compression ratio, it should be AKI 93 octane which should be equivalent to RON 97 or 98.

      Like or Dislike: Thumb up 4 Thumb down 0
    • Ronald Mcdonald on Oct 25, 2021 at 10:36 pm

      AKI 93 is similar to RON 97/98

      Like or Dislike: Thumb up 1 Thumb down 1
  • Hong Yee Hong on Oct 25, 2021 at 9:35 pm

    American… Yawn…

    Like or Dislike: Thumb up 0 Thumb down 1
  • muscle car engine

    Like or Dislike: Thumb up 0 Thumb down 0
 

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