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Discussion Starter · #1 ·
hello im new to the forums, my name is dak and im thinking about getting a srt-8. my question is if i bought the 6.1 hemi could i bore it out to a 426 ci.
 

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I believe this question mat have been generated by David Vizard's speculation in Popular Hotrodding talking about the 5.7 block. Vizard's words in blue

"A section through Chrysler's cross-bolted-mains Hemi block shows it to be a precision casting. This means that for its 5.7-liter (345ci) displacement, it is lighter than a typical comparable displacement engine. The down side of the weight saving due to casting precision is that big over-bores are out. "

So he's saying a new block is needed for significantly larger engines - that's what the SRT8 got.

Although experience may paint a different picture, this block, for a real performance application, should probably not be bored more than .030 over.

He's guessing - based on his considerable experience - that .030 is the limit for the 5.7 block

"Having said that, the factory appears to have built in room to grow this block to significantly more cubes. Our guess for the future is that 400 inches is practical and the magic 426 inches might just be possible".

He's saying that future new hemi block/crankshaft combinations could yeild 400 to 426 .The SRT8 block will not carry a such a large overbore - and with the transmission it's mated to it does not make sense. The transmission is a capable and advanced unit, but Chrysler wants to stay within the sweet spot of relaibility, with the torque they put through it. I can cite many examples in the past where manufacturers were not as responsible: in fact they were outright negligent. I applaud Chrysler for it's decisions.

The SRT8 is a well put together, balanced package. I for one would not consider messing with it like that. Any future engines by the factory with beefier transmissions, and other upgraded drive train, and other components would be a different matter.

Zilla
 

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YOu're both right, but where's your sense of humor?
Heck, I say drop in a crate 426.
Who's buying gas today? :chairfall
 

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Discussion Starter · #5 ·
thanks guys i was just thinking how cool would it be to have a 300 with a 426 hemi.

i dont really feel like spending the money (13,000$$??) for the 426 crate

but im sure the srt8 already has more than enough power

from what ive heard its tops out at like 180 and the thing is a square, that impresses me
 

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The term of affection is "brick" - like, she's a brick, ouh!
 

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lemurfart said:
thanks guys i was just thinking how cool would it be to have a 300 with a 426 hemi.

i dont really feel like spending the money (13,000$$??) for the 426 crate

but im sure the srt8 already has more than enough power

from what ive heard its tops out at like 180 and the thing is a square, that impresses me
After being surprised to look down at the speedo to see mine at 140MPH since the engine wasn't even trying, yea....it's got enough power. :D

But I wouldn't touch the engine. Buy a slant 6 dart and swap a 426 crate in that instead.
 

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Redman said:
The term of affection is "brick" - like, she's a brick, ouh!
You mean "She's a Briiiiick....Hooouse....She's mighty mighty, just lettin' it awwll hang out."

How appropo. :D
 

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Discussion Starter · #12 ·
:laughing: :35: :veryhappy :wiggle: :261: :headbang: :headbang: :headbang: :laugh2: :loser: :why: :lmao: :slap: :banana: :banana:

that was awesome and yes i think you have the concept of my username
 
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