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07-17-2016, 09:44 PM
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#1 | |
 
Drives: 2014 F150 STX Join Date: Jan 2016
Location: clearwater fl
Posts: 37
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LT4 engine has a cast crank ?
Jump to the 3:40 mark and check this out
The LT4 does not have a forged crank ? You kidding me ?
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Past cars
1968 Camaro best run 10.10 at 133mph 2013 Mustang GT best run 10.83 at 129mph 2011 Mustang GT best run 12.80 at 112mph 1993 Pontic firebird formula best run 13.49 at 104mph 1992 Mustang LX best run 13.24 at 107mph 1969 Camaro best run 10.99 at 122mph |
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07-17-2016, 10:20 PM
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#2 |
 
Drives: 2017 White ZL1 A10 Join Date: Mar 2016
Location: SoCal
Posts: 171
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On the Chevrolet web site it says forged steel
LT4 Tech Specs- Part Number: 19332621 or 19332702 Camshaft Duration (@.050 in.): 189° intake / 223° exhaust Engine Type: Direct injection spark ignition Gen-V Small-Block V8 Displacement (cu. in.): 376 (6.2L) Bore x Stroke (in.): 4.06 x 3.62 (103.25 x 92 mm) Block (P/N 12619171): Cast aluminum with 6-bolt nodular iron main bearing caps Crankshaft: Forged steel Connecting Rods: Forged powdered metal Pistons (P/N 12674094 Right Hand and 12674093 Left Hand): Forged aluminum with internal ribs; flat-top crown Camshaft Type (P/N 12642245): Hydraulic roller Cylinder Heads (P/N 12646959): A356-T6 rotocast aluminum Valve Size (in.): 2.13 intake / 1.59 exhaust |
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07-17-2016, 10:24 PM
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#3 |
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Hyper Blue 2016 Camaro 2S
Drives: 16 Hyper Blue2SS NPP MagRide 6M NAV Join Date: Apr 2016
Location: east texas
Posts: 655
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Interesting, ya I knew I read it was forged also.
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07-18-2016, 06:27 AM
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#4 |
 
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Yeah even the new LT1 has a forged crankshaft if I'm not mistaken
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07-18-2016, 06:50 AM
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#5 |
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Drives: Anything I want Join Date: Oct 2008
Location: DfW - Texas
Posts: 5,405
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Its forged
It is a forged crank in the lt1 and lt4
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07-18-2016, 06:50 AM
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#6 |
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Account Suspended
Drives: '69 RS Pro Street Join Date: Feb 2016
Location: East Coast
Posts: 939
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Cast cranks are typically used in applications from 300-450hp. Once you start pushing 500 and above a forged crank is more suitable. The video might show something different and it could be a mix of footage. You cant always rely on media. Look at the magazine article that said the ZL1 comes with the A8. We all know it's a 10.
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07-18-2016, 07:16 AM
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#7 |
 Drives: BMW M3 Join Date: Jun 2016
Location: TX
Posts: 55
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Right off of the site, says the crankshaft is forged.
http://www.chevrolet.com/performance...gines/lt4.html
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07-18-2016, 10:22 AM
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#8 |
Drives: 2017 Ford F250, 2019 Lincoln Navi Join Date: Apr 2016
Location: Houston, TX
Posts: 391
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Cool video nonetheless. Thanks
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Instagram: MattZ_L1 Vengeance Racing Built
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07-18-2016, 12:24 PM
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#9 | |
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Hyper Blue 2016 Camaro 2S
Drives: 16 Hyper Blue2SS NPP MagRide 6M NAV Join Date: Apr 2016
Location: east texas
Posts: 655
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Quote:
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07-18-2016, 12:53 PM
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#10 |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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This is what happens when you have some one makes a video, but has no idea what there taking about, its forged, its not billet, maybe that's what you where looking for.
Last edited by 2SSRS@Gen5diy; 07-18-2016 at 02:23 PM. |
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07-18-2016, 01:06 PM
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#11 |
  Drives: 1970-1/2 Z-28, 2017 ZL1 Join Date: Sep 2012
Location: Sanford, Fl
Posts: 973
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It is forged. I have one in my garage right now and can assure you it is forged.
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07-18-2016, 01:39 PM
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#12 |
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Drives: 2016 Garnet Red 2SS A8 Join Date: Jul 2016
Location: Houston
Posts: 28
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Heck the nodular (cast) iron cranks in the Gen3/4 LS motors handled a ridiculous amount of horsepower already. Maybe these forged units won't twist up as much though, we'll see when folks really start pushing the power.
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07-18-2016, 01:42 PM
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#13 |
     
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
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Yep, some dipshit tv producer does not know the difference between cast and forged....
It's just metal..... |
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07-18-2016, 02:18 PM
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#14 |
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Drives: 2014 F150 STX Join Date: Jan 2016
Location: clearwater fl
Posts: 37
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I guess the video maker has to get their facts strait.
I checked out the link http://www.chevrolet.com/performance...gines/lt4.html for the engine specs...Whats up with using powder metal con rods ? Why would chevy not use a regular forged rod ? The ford coyote 5.0 has powder metal rods and they suck as a weak point. I am considering buying a ZL1 and I want something that will hold up.
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Past cars
1968 Camaro best run 10.10 at 133mph 2013 Mustang GT best run 10.83 at 129mph 2011 Mustang GT best run 12.80 at 112mph 1993 Pontic firebird formula best run 13.49 at 104mph 1992 Mustang LX best run 13.24 at 107mph 1969 Camaro best run 10.99 at 122mph |
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