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Discussion Starter · #1 · (Edited)
Hello everyone,

I'm a long-time reader and first time poster on this forum.

I'll get straight to the point:

I have a 2019 Scat Pack Challenger. I won't get into the details but my engine block has a crack in it. I am considering the best option to fix it (& potentially improve it). My car is for the most part stock (no NOS, Boost, etc).

Option 1) Get a replacement short block.
This seems to be the most logical answer, however, I can't really find just a short block engine (they're either forged or long blocks). My cylinder heads are reusable. The forged 392 engines I was able to find were about $5,000 (+/- $1,000). The labor for cylinder heads & install (plus gaskets, etc) I estimate would be $1,500- $2,500.
This way I wouldn't need to get it tuned or anything. Quick turn around. Total cost: $7,500.

Option 2) Get an improved short block
I am considering getting a 426 or 448 short block since it's only marginally more expensive ($6,000) & I'd be able to use my cylinder heads for it too, same math as in option 1, except I'd need to get it tuned ($1,000 or so). This would take longer I'm assuming. Total cost; $9,000

Option 3) Get a replacement long block
This would save me on labor and servicing the cylinder heads (& save on the parts such as gaskets, etc.) but the downside is that it's more expensive: $9,000. Total cost: $10,000.

My question is this:
If my goal is to get my car up and running as soon as possible, what would you guys recommend.

If you were in this position what would you do? I am not opposed to adding a 426 forged short block now with the potential to add forced induction later (either a Whipple Supercharger or a Hellion Twin Turbo Sleeper Kit, obviously with new fuel pump, injectors, etc.)

Would you take advantage of my engine being pulled out to do any other modifications?

Thank you in advance for your insights!
Brown Wood Motor vehicle Font Gas
 

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Challenger SRT 392
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9,301 Posts
Is this a daily driver and are you without a car now?

If so I'd find a junkyard 392 and drop it in.


Sent from my SM-N960U using Tapatalk
 

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Charger 392
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224 Posts
Door number 3. I would take advantage of the availability of the New OEM Hellcat Longblocks. MMX has them with Intake Adapters to bolt on 6.4/6.1 Intake manifold. Direct swap into 2011-Present 6.4 Challenger.

$7,699.00 plus installation.

This way you could add boost later when funds are available.

 

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‘16 A8 Shaker
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3,116 Posts
Well it doesn’t freeze where I live but I cracked a bunch by overpowering the con rods lol

One by letting a “pro” drive it (tried to leave in neutral) stretched all the rods. Broke next pass

Seen a bunch of early 440 blocks crack in the water jackets like the disappearing OP’s supposedly did. Just from heat cycles and pressure. Mopar added ribs to the outside in 1968 to strengthen but you still gotta watch (magnaflux) blocks and pay close attention around the freeze plugs
 
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