LS1 vs.LT4 vs.LT5 vs.LS6 vs.LS7 etc. discussion continued

[WB9MCW]

Originally Posted by XfireZ51

Here's a movie scene that best demonstrates how I think the LT-5 compares w the rest. I get teary eyed every time I watch this. Remember watching it live w my father. UNBELIEVABLE!


http://youtu.be/qey045iro58

Indeed Indeed - Excellent movie and great analogy for the KOTH LT5.

Reel 'em in and look 'em in the eye then wave bye-bye and spit 'em out your exhaust pipe. Permagrin every time.

[RyanChappel]

Now I am seriously considering (again) sending my Z(#1929) to Haibeck for the winter.......

You guys simply cannot leave well-enough alone......

"I feel the need for (more) speed!"

[XfireZ51]

Originally Posted by RyanChappel

Now I am seriously considering (again) sending my Z(#1929) to Haibeck for the winter.......

You guys simply cannot leave well-enough alone......

"I feel the need for (more) speed!"

For the love of humanity, don't drive a modded ZR-1. Stay away from these evil machines. You will never forgive yourself for taking the dark path. There is no return.

[Hog]

Originally Posted by 8cam

Being relatively new to the GM world, is there a nice clean index somewhere that defines all the LSTPDQ27-hike designations? I pretty much know LT5, and all the swaps are LS-something-or-other, always looking to learn.

Here is a copy paste of a list I put together awhile ago.

GEN1-E
1996-99 GMT 400 trucks, 96-2000 GMT400 style SUV's,1996-2002 G vans L31 Vortec 350, L30 Vortec 305

GEN 2
1992-1996 Vettes, 1993-97 F-bodies, 1994-96 B-bodies(Caprice) these were LT1's(B-bodies had iron heads)
1994-96 4.3L V8 rpo L99

GEN3-
1997-2004 Vette, 1998-2002 LS1-1999-2007, 2001-2004 Vette/2005 CTS-V LS6 5.7 GMT 800 trucks LR4-4.8, LM7-5.3,
L33-5.3 2005-07 4wd e-cab reg box truck
L59-5.3 2001+ flexfuel
LM4 5.3-03-04 SSR
1999-2007(99-00 iron heads) LQ4 1500HD,2500HD,3500HD trucks Sierra Denali(325hp) Sierra C3(AWD-325hp)
2002-2007 LQ9 Escalade, SS Silverado(2004+ B4V VHO 2wd ext cab truck)

GEN 4
LS2 2005-2013 Vette 2005-2007-Trailblazer SS 2006+/2006-2007 CTS-V , 2005-SSR
LS3 2008-2013 Vette-2010+ Camaro(manual trans), 2009 G8 GXP
LS4 2005-2009 FWD cars 5.3L alum block 13 mm narrower than truck 5.3's
LSA 2009+ Cadillac CTS-V/2012+ ZL1 Camaro 6.2L (SC-piston oil squirters)
LS7-2006-2013 Z06 Vette 2014+ ZL1 Camaro, LS9(SC-piston oil squirters)) 09-2013 ZR1 Vette,
L99-2010+ Camaro(auto trans VVT)
LY2 4.8=2007.5+ GMT900 trucks(with 799 heads)

5.3
2007.5+ GMT900 trucks(with 799 heads)-
LH6(alum block)LY5(iron block)
LMG(iron block-flex fuel)
6.0=
2007.5+ L76(alum block) also 2009 G8-GT LY6(iron block)
6.2-
2007.5+ L92(alum block)

GEN 5 SBC (Direct Injection)
LT1 6.2-2014+ Corvette(DI, VVT, AFM, piston oil squirters)
L83 5.3-2014+ GMC/Chevrolet truck(DI,VVT,AFM, piston oil squirters)
L86 6.2 2014+ GMC/Chevrolet truck(DI,VVT,AFM, piston oil squirters)
LT4 6.2 2015+ Chev Corvette ZO6 SAE-certified 650hp@ 6,400 rpm/650lb/ft @ 3,600 rpm

BBC
Mark 1 "W" Series
348 Mk 1 "W" Series
348 576A 1958-61 250hp
348 573A 1958-61 280hp
348 576B 1958-61 300hp(58) 305hp(59-61)
348 573B 1958, 1961 315hp(58) 350(61)
348 577 1959-60 320hp
348 574 1959-60 335hp
348 590 1961 340hp

409 Mk 1 "W" Series
409 580 1961-62 360hp(61) 380hp(62)
409 587 1962 409hp
409 L33 1963-65 340hp
409 L31 1963-35 400hp
409 L80 1963-64 425hp
427 Z11 1963 (427 "W" Series Engine) 425hp

Mk II (Mark 2)
MK II engines were under development as a race engine, with 2 bolt mains. In Nov. 1962 NASCAR increased its max cube rule to 427. Chevrolet followed suit resulting in the Mk IIS

MK IIS (Mark 2-S) "Daytona 500 Mystery Engine"
Now with 427 cubes the "Mystery Engine" now sported 4-bolt mains, these engines were tested by JR Johnson, Bubba Farr, GC Spencer and Rex White. Johnson won teh 1st 100 mile qualifying race with an average speed 7mph OVER the current record for that race. Rutherford won the 2nd 100 mile qualifier with a record average speed of 165.183mph. Top brass at Chevrolet were calling the Chev race teams congratulating them on their success in qualifying. They didnt even knoiw thatthese engines werent the old "W" Series 409 engines. The MK-2 devolpment team was small and they had built these engines without upper managemnt approval.

MK III (Mark 3)
During the summer of 1963 Chev engineers were looking at the possibility of having a different bore center for larger displacement engines. The MK III never got off the drawing board.

Mk IV (Mark 4)
396 Mark IV(Mark 4)
L34 1966-69 360hp(66) 350hp(67-69) 4bbl.
L35 1965-69 325hp 4bbl.
L37 1965 375hp 4bbl.
L66 1969 265hp 2bbl
L78 1965-69 425hp(65) 375hp 4bbl. (66-69) 4bbl.

402 Mk IV(Mark 4)
LS-3 1970-72 330hp(70) 4bbl., 300hp(71) 4bbl., 210hp(72) 4bbl., 240hp(72) 4bbl.
L34 1970 350 hp 4bbl.
L78 1970 375hp 4bbl.

427 Mk IV(Mark 4)
L36 1966-69 385hp(66) 4bbl., 390hp(66-69) 4bbl.
L68 1967-69 400hp 3x2bbl.
L71 1967-69 435hp 3x2bbl.
L72 1966 & 1968-69 425hp 4bbl.
L-88 1967-69 (alum. heads/iron block 430hp@5200rpm rating/dyno shows 437hp@5200rpm/560hp@6200rpm with headers)
ZL-1 1969 (aluminum block/heads) 430hp 4bbl.

454 Mk IV(Mark 4)
LS-4 1970, 73-76 345hp(70), 215hp&245hp&275hp(73), 235hp&270hp(74) 4bbl., 235hp(75)4bbl., 225hp(76)4bbl.
LS-5 1970-72 360hp&390hp(70)4bbl., 365hp(71)4bbl., 230hp&270hp(72) 4bbl.
LS-6 1970-71 425hp(70) 4bbl., 425hp(71) 4bbl.
LS-7 (non-OEM) 460hp@5600rpm/490lb/ft torque@3600rpm 11.25:1 c/r

GEN V (Generation 5)
L19 7.4 GEN V(GEN5)
1991-1993 454SS truck,
1991-1997 3/4-1 ton truck(TBI)
1991-95 454HO/502 (non-OEM)

GEN VI (Generation 6)
L29 1996-2000 3/4-1 ton trucks/SUV's
L21 7.4 1998-2001 Medium duty trucks Kodiak, P30 van, P12 cab/chassis
1996+ roller cammed (non OEM) 502 with nitrided crank, 454 same crank but non-nitrided

GEN VII (Generation 7)
L18 8.1 2000-2007 GMT800 trucks, 2000-09 Medium Duty trucks Kodiak


Thats all I could think of lol, there are more. But hast the basic jist.



For the 2008+ GEN 4 engines there are over 20 different RPO codes for the 5.3 itself-I suggest looking at the GM Media Archives for them all.

http://archives.media.gm.com/us/gm/en/index.html


Here is a good GEN 3 GEN 4 SBC resource

http://www.superchevy.com/how-to/eng...n/viewall.html

[Hib Halverson]

Originally Posted by Hog

(snip)
L68 1967-69 400hp 2x4bbl.
L71 1967-69 435hp 2x4bbl.

(snip)

Should be:
L68 1967-69 400hp 3x2bbl.
L71 1967-69 435hp 3x2bbl.

No Mark IV was ever released with dual four barrels.

[Hog]

Originally Posted by Hib Halverson

(snip)

Should be:
L68 1967-69 400hp 3x2bbl.
L71 1967-69 435hp 3x2bbl.

No Mark IV was ever released with dual four barrels.

Thanks Hib!
Of course, I forgot about the 3 x 2 bbls.

Corrected!

[Hog]

96 LT4
330 sae net hp@5800rpm/340 lb/ft torque@4500rpm.

92-96 LT1
300 sae net hp@5000rpm and 335lb/ft torque@4000rpm.

90-92 LT5
375 sae net hp@6000rpm/370 lb/ft torque@ 4800rpm

93-95 LT5
405 sae net hp @5800rpm/385lb/ft torque@4800rpm

1997 LS1
345hp@5600rpm/350lb/ft torque@4400rpm

I see many LT4's that are dynoing between 290 and 310rwhp.

[edram454]

If I was more concerned about speed I would have not sold my c5 corvette. Speed isnt everything. History, engineering and a limited edition product is sometimes more important than speed. I like the fact that I have a rare car, that is unique, looks great handles and performs with contemporary cars but will be 25 years old in a couple of months. Our cars are still relevant. They are not the fastest unless we dump thousands of dollars to boost them up which I will not. Maybe a nitrous shot if you dont mind losing a head gasket or worse.

I am satisfied with the Lt5 performance and happy about everything else. This has been the car I have most enjoyed owning and driving. It is not the fastest car I have had by a long shot but the funnest.

ed ramos #3028

[5ABI VT]

I agree with ^^. It definitely isn't about speed for me. I had enough to pick up an 08 ls3 but what a god awful ugly car in my eyes. I knew it was similar in straight line speed but the dollar/speed ratio is obviously much better with the LS3 motor when it comes to heads or even a cam or a stroker.

I always like to say. "its not about how fast you go. Its about what you go fast in' !!

[WB9MCW]

It is always fun to own a legend - KOTH forever == nuff said