Chevy Engineer drops details on LT4

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Feb 2, 2014 | 02:32 PM

#21

LS1MCSS

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Quote:

Originally Posted by Jimbo1367

Its ONLY money. You can't take it with you when you die.

Yep, you're right, I have never seen a hearse with a luggage rack.

Feb 2, 2014 | 02:40 PM

#22

LS6427

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Why are they making a SC'ed engine making LESS power than the SC'ed Vette that's been out for a couple years.

.

Feb 2, 2014 | 03:03 PM

#23

MasterTomos

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Quote:

Originally Posted by LS6427

Why are they making a SC'ed engine making LESS power than the SC'ed Vette that's been out for a couple years.

.

It's estimated at 625hp...the ZR1 had 638hp...the LT4 will surely be rated higher when "official". Just like the ZL1 that was originally rated at "about 550hp", but it ended up with 585hp and the 2013 GT500 was "estimated" significantly lower than 662hp as well. Car makers do this every time they release a new performance vehicle.

I'm guessing at least 650hp in the production LT4.

Feb 2, 2014 | 10:20 PM

#24

Jimbo1367

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Quote:

Originally Posted by LS1MCSS

Yep, you're right, I have never seen a hearse with a luggage rack.

lol. TF

Feb 7, 2014 | 06:39 PM

#25

handyandy496

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From: florida

Sounds like its going to be rated low like the old vettes rated at 425 and actually made over 550 (L-88). Or like the Gn with 245 hp. Just add a spring on the waste gate and a little octaine and WoW. I read somewhere that there is going to be an all out e-85 vette In showrooms soon. 201?

Feb 7, 2014 | 06:49 PM

#26

handyandy496

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Quote:

Originally Posted by LS6427

Why are they making a SC'ed engine making LESS power than the SC'ed Vette that's been out for a couple years.

.

Was that 427 an ls2 or ls3 block ??? That's awesome miles!!

Feb 9, 2014 | 04:37 PM

#27

79LSTA

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that's awesome what they did with the LT4 engine, even more impressive is the 8 speed auto that will be offered in the z06 as well

Feb 10, 2014 | 08:47 PM

#28

Tainted

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Quote:

Originally Posted by handyandy496

Was that 427 an ls2 or ls3 block ??? That's awesome miles!!

Lsa/ls9 are both on 4.060 bores and 6.125 (pretty sure) rods and use ls3 style blocks

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Feb 11, 2014 | 11:33 AM

#29

grocerygetter

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i know lsa and ls3 blocks are same...not sure about ls9

Feb 16, 2014 | 04:18 PM

#30

Exidous

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LS9 is a special block with oil squirters and such.

Mar 12, 2014 | 08:55 AM

#31

brandonk

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i need one of these in my life haha

Mar 16, 2014 | 10:48 PM

#32

4wheels

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From: Indiana

LSA block (was LT4 coversation)

Pretty sure the LSA block has piston oil cooling too (so it can't be the same as the LS3).

LS9 is different since it has different cylinder head bolt thread sizes than the other Gen IV engines.

Now back the Gen V related LT4 discussion. 8-)

Quote:

Originally Posted by Exidous

LS9 is a special block with oil squirters and such.

Mar 20, 2014 | 05:06 PM

#33

SNLPerformance

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Quote:

Originally Posted by MasterTomos

The ZL1 was originally estimated off the LSA in the CTSV at 556hp, but with it's better exhaust and electric power steering it ended up making 580hp

Quote:

Originally Posted by Tainted

Lsa/ls9 are both on 4.060 bores and 6.125 (pretty sure) rods and use ls3 style blocks

I believe he was talking about the engine that died at 173k miles in "LS6427" sig

Mar 21, 2014 | 03:03 PM

#34

redtan

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Quote:

Why are they making a SC'ed engine making LESS power than the SC'ed Vette that's been out for a couple years.

The model is what matters here. You now have the lower Z06 model making the same power as the previous ZR1. And a helluva lot more than the previous Z06.

Did anyone complain when the base C6 made less N/A power than a C5Z that had been out for a couple of years? No.

Mar 24, 2014 | 01:16 PM

#35

disc0monkey

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these new motors are beast, i doubt anyone will be disappointed moving from a ZR1

Mar 28, 2014 | 03:32 AM

#36

Wnts2Go10O

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Quote:

Originally Posted by SNLPerformance

The ZL1 was originally estimated off the LSA in the CTSV at 556hp, but with it's better exhaust and electric power steering it ended up making 580hp

I believe he was talking about the engine that died at 173k miles in "LS6427" sig

plus larger blower.

Apr 5, 2014 | 05:32 PM

#37

Jimbo1367

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me 2

Quote:

Originally Posted by jwindbigler

Sweet! I can't wait to see this guy in action

werrrd

Apr 27, 2014 | 03:22 AM

#38

rjwz28

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Quote:

Originally Posted by SNLPerformance

The ZL1 was originally estimated off the LSA in the CTSV at 556hp, but with it's better exhaust and electric power steering it ended up making 580hp

Quote:

Originally Posted by Wnts2Go10O

plus larger blower.

Negative. The LSA in the CTS-V and ZL1 share the TVS1900 blower.

Apr 28, 2014 | 10:29 AM

#39

SNLPerformance

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Quote:

Originally Posted by rjwz28

Negative. The LSA in the CTS-V and ZL1 share the TVS1900 blower.

I agree

May 4, 2014 | 01:37 AM

#40

DietCoke

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From: Richmond Hill, GA

Quote:

Originally Posted by rjwz28

Negative. The LSA in the CTS-V and ZL1 share the TVS1900 blower.

The ZL1's blower is technically larger, even if they share the same displacement rotor pack. The plenum is MUCH larger in key areas around where the air turns and goes through the aftercooler

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