Yungcris09

Ok so I have these two engines and one of them im goin to buy and install in my 89 irocz camaro im just tryin to figure out which engine is better and wat all parts do I need to get this swap done I see that these engines are just anout yhe same as a ls1 and that yhese engines can take all kind of parts from the ls1 ls2 ls3 ls7 lsx familys so wjat is the best why to about this any help would be great thanks in advance

Guest

Car Craft aside, there was no LM4. The LR4 was a 4.8L, and the LM7 was a 5.3L. Both had iron blocks.
The L33 had an aluminum block, making it much more desirable. Plus it can be bored to 5.7L. But so can the LM7.
If you're going to turbo it past 600 HP, then get the iron block.

Yungcris09

Not true there was a lm4 block and it was a aluminim block also it was a high output 5.3 that was seen in the ssr and trailblazer it just had a short life span it was only made for 2 years and only 25% of the 2 or 3 cars the engine was offered in it recieved that engine

Yungcris09

Here is some info on the 4.8 and the 5.3 as far as specs go. Back in the day with early small-block engines you could upgrade the heads and such with bigger valves etc. but I'm not sure what you can swap with the newer engines and it looks like the only difference is the 5.3 has a longer stroke but same bore size as the 4.8.

V8

4800

LR4 The Vortec 4800 LR4 is a Generation III small block V8 truck engine. Displacement is 4.8 L (≈293 cu in) with a 96.01 mm bore and 83 mm stroke. It is the smallest of the Generation III Vortec truck engines and was the replacement for the 5.0 L 5000 L30. The LR4 produces 270 horsepower (200 kW) to 295 horsepower (220 kW) and 285 lb·ft (386 N·m) to 305 lb·ft (414 N·m), depending on the model year and application. LR4s are manufactured at St. Catharines, Ontario and Romulus, Michigan.

LR4 applications:

2003-present Chevrolet Express 2500-3500/GMC Savana 2500-3500 1999-2007 Chevrolet Silverado/GMC Sierra 1999-2006 Chevrolet Tahoe/GMC Yukon

LY2 The Vortec 4800 LY2 is a Generation IV small block V8 truck engine. Like its LR4 predecessor, it gets its displacement from a 96.01 mm bore and 83 mm stroke. The smallest member of the Generation IV Vortec engine family, it is unique in that it is the only member of that family that does not feature either variable valve timing or Active Fuel Management. It is rated at 295 hp (220 kW) and 305 ft·lbf (414 N·m) of torque for all applications.

LY2 applications:

2007-present Chevrolet Silverado 1500 2007-present Chevrolet Tahoe 2007-present GMC Sierra 1500 2007-present GMC Yukon

5300

Generation III The Vortec 5300, or LM7/LM4/L59/L33, is a V8 truck engine. It is a stroked (by 9 mm) version of the Vortec 4800 and replaced the 5700 L31. L59 denoted a flexible fuel version, while the LM7 was the standard version of the engine.

Power output is 285-295 hp (213-220 kW) and torque is 325 lb·ft (441 N·m) to 335 lb·ft (454 N·m). Displacement is 5.3 L (5328 cc (325 cu in)) from 96.01 mm bore and 92.00 mm stroke. Vortec 5300s are built in St. Catharines, Ontario, Romulus, Michigan, and Silao, Mexico.

LM7 The LM7 Vortec 5300 was introduced in 1999, and can be considered the "garden variety" version of the Generation III 5.3 liter V8's.

LM7 applications:

2002-2005 Cadillac Escalade 2WD 2002-2006 Chevrolet Avalanche 2003-2007 Chevrolet Express/GMC Savana 1999-2007 Chevrolet Silverado 1500 1999-2007 GMC Sierra 1500 1999-2006 Chevrolet Suburban/GMC Yukon XL 1999-2006 Chevrolet Tahoe/GMC Yukon

LM4 The LM4 was an aluminum block version of the LM7, and had a short production life. It should not be confused with the L33.

LM4 applications:

2004 Chevrolet TrailBlazer EXT 2004 GMC Envoy XL 2004 Chevrolet SSR

L33 The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. Power increased by 15 hp (11 kW), to 310 hp (230 kW), over the LM7, and torque was unchanged. It was only available on extended cab 4WD pickup trucks.

L33 applications:

2005-2007 Chevrolet Silverado 1500 4WD 2005-2007 GMC Sierra 1500 4WD

L59 The L59 Vortec 5300 was introduced in 2002, and was a flexible fuel version of the LM7. Power and torque ratings matched that of the LM7.

L59 applications:

2002-2007 Chevrolet Silverado 1500 2002-2006 Chevrolet Tahoe/GMC Yukon 2002-2006 Chevrolet Suburban/GMC Yukon XL 2002-2007 GMC Sierra 1500

Generation IV First introduced in 2005, the Generation IV Vortec 5300 engines share all the improvements and refinements found in other Generation IV engines. At present, four versions of the 5300 are in production: 2 iron block versions (LY5 and LMG) and 2 aluminum block versions (LH6 and LC9). All versions feature the Active Fuel Management system.

LH6 The LH6 with Active Fuel Management replaced the LM4 for 2005, and was the first of the Generation IV small block V8 truck engines to go into production. It is the aluminum block counterpart to the LY5.

LH6 applications:

2005-2007 Chevrolet TrailBlazer including EXT 2005 GMC Envoy XL 2005 GMC Envoy XUV 2005-2007 Buick Rainier 2005-present Saab 9-7X 2007 Chevrolet Silverado 1500 2007 GMC Sierra 1500

LY5 Introduced in 2007, the LY5 Vortec 5300 is the replacement for the LM7 Generation III engine. For SUV applications, it is rated at 320 hp (239 kW) and 340 ft·lbf (461 N·m) of torque; for pickup truck applications, it is rated at 315 hp (235 kW) and 338 ft·lbf (458 N·m) of torque.

LY5 applications:

2007-present Chevrolet Avalanche 2007-present Chevrolet Silverado 1500 2007-present Chevrolet Suburban 1/2 ton 2007-present Chevrolet Tahoe 2007-present GMC Sierra 1500 2007-present GMC Yukon 2007-present GMC Yukon XL 1/2 ton

LMG The LMG Vortec 5300 is the flexible-fuel version of the LY5. Power and torque ratings for SUV and pickup truck applications are the same as each application's LY5 rating.

LMG applications:

2007-present Chevrolet Avalanche 2007-present Chevrolet Silverado 1500 2007-present Chevrolet Suburban 1/2 ton 2007-present Chevrolet Tahoe 2007-present GMC Sierra 1500 2007-present GMC Yukon 2007-present GMC Yukon XL 1/2 ton

LC9 The LC9 Vortec 5300 is the Flex-Fuel version of the LH6, and is found in 4WD models. SUV applications are rated at 310 hp (231 kW) and 335 ft·lbf (454 N·m) of torque.

LC9 applications:

2007-present Chevrolet Avalanche 2007-present Chevrolet Silverado 1500 2007-present Chevrolet Suburban 1/2 ton 2007-present GMC Sierra 1500 2007-present GMC Yukon XL 1/2 ton

LH8 The LH8 Vortec 5300 is a variant of the 5.3 L Gen IV small block V8 modified to fit in the engine bay of the GMT 345 SUV and GMT 355 trucks. It produces 300 hp (220 kW) at 5200 rpm and 320 lb·ft (434 N·m) at 4000 rpm. It has a displacement of 5328 cc (325 cu in). [22]

LH8 applications:

2008-present Hummer H3 2009-present Chevrolet Colorado 2009-present GMC Canyon

Guest

bad info aside, ALL of the aluminum-block 5.3s were either the L33 or the LS4. LS4 was FWD, so that doesn't help you.
There was no LM4.

Yungcris09

This gm's database on its engines GM Vortec engine

GM Vortec engine families Gfuk uM 122 engine Type RPO Name Displacement

I4 L43 2200 2,189 cc (2.189 L; 133.6 cu in) [1]

LN2 2200 2,189 cc (2.189 L; 133.6 cu in) [2]

GM Atlas engine Type RPO Name Displacement

I4 LK5 2800 2,770 cc (2.77 L; 169 cu in) [3]

LLV 2900 2,921 cc (2.921 L; 178.3 cu in) [4]

I5 L52 3500 3,460 cc (3.46 L; 211 cu in) [5]

LLR 3700 3,651 cc (3.651 L; 222.8 cu in) [6]

I6 LL8 4200 4,160 cc (4.16 L; 254 cu in) [7]

Chevrolet Small-Block engine, Gen. I-E Type RPO Name Displacement

V6

LB4 4300 4,300 cc (4.3 L; 260 cu in) L35 4300 4,300 cc (4.3 L; 260 cu in) [8] LF6 4300 4,300 cc (4.3 L; 260 cu in) LU3 4300 4,300 cc (4.3 L; 260 cu in) [9] LG3 4300 4,300 cc (4.3 L; 260 cu in)

V8 L30 5000 5,012 cc (5.012 L; 305.9 cu in) [10]

L31 5700 5,733 cc (5.733 L; 349.8 cu in) [10]

GM LS engine (Gen. III small block) Type RPO Name Displacement

V8

LR4 4800 4,807 cc (4.807 L; 293.3 cu in) [11]

L33 5300 5,328 cc (5.328 L; 325.1 cu in) [12]

LM7 5300 5,328 cc (5.328 L; 325.1 cu in) [13] LM4 5300 5,328 cc (5.328 L; 325.1 cu in) L59 5300 5,328 cc (5.328 L; 325.1 cu in) [13]

LQ4 6000 5,964 cc (5.964 L; 363.9 cu in) [14]

LQ9 HO 6000 5,964 cc (5.964 L; 363.9 cu in) [15]

GM LS engine (Gen. IV small-block) Type RPO Name Displacement

V8

LY2 4800 4,807 cc (4.807 L; 293.3 cu in) [16] LH6 5300 5,328 cc (5.328 L; 325.1 cu in) LY5 5300 5,328 cc (5.328 L; 325.1 cu in) LMG 5300 5,328 cc (5.328 L; 325.1 cu in) [17] LC9 5300 5,328 cc (5.328 L; 325.1 cu in) LH8 5300 5,328 cc (5.328 L; 325.1 cu in) L76 6000 5,967 cc (5.967 L; 364.1 cu in) [18]

LY6 6000 5,967 cc (5.967 L; 364.1 cu in) [19] LFA 6000 5,967 cc (5.967 L; 364.1 cu in) L92 6200 6,162 cc (6.162 L; 376.0 cu in) [20]

GM Big-Block engine Type RPO Name Displacement

V8 L21 7400 7,439 cc (7.439 L; 454.0 cu in) L29 7400 7,439 cc (7.439 L; 454.0 cu in) [10]

L18 8100 8,128 cc (8.128 L; 496.0 cu in)

1ADan

iTrader: (4)

any 5.3 is going to need the same things - fbody accessories and oil pan; intake will depend on heads. do a search on some of the build threads we've got going around; any 5.3 and 6.0 swap will have the same general issues. each build is different, so minute details are going to vary depending on what the overall setup includes.

one92rs

iTrader: (5)

LM4

The LM4 (VIN code "P") Vortec 5300 is an aluminum block version of the LM7, and had a short production life. It should not be confused with the L33 described below.
LM4 applications:

• 2003–2004 Chevrolet TrailBlazer EXT
• 2003–2004 Isuzu Ascender
• 2004 GMC Envoy XL
• 2003–2004 Chevrolet SSR
• 2004 Buick Rainier

Pocket

iTrader: (24)

Name tags aside, are you even able to find these very low production engines?

Using a turbo on a 3rd gen swap the only useful things are the shortblock and heads, which swing back to essentially 5.3 alum vs 5.3 iron. How much is 70lbs of weight savings worth to you?

Yungcris09

Thank u one92rs I knew I wasnt crazy I knew there was a lm4 engine but it just wasnt made that long I just need to know wat all parts can be exchanged from the ls1 ls2 ls3 ls6 familys yo increase horsepower

Yungcris09

Yea I can these engines 500-1000 all day long for a swap and they are just about the same as a ls1 just a 5.3 version of it cause these engines come factory 310 hp-350 tq all I want is a 400 hp engine I aint tryin to do much more than that

1ADan

iTrader: (4)

if you're goin for 400 hp, I'd say go for a 6.0; after you're done with the turbo, intercooler, and upgrades, you'll have spent more to get to the same power levels

Yungcris09

Well I wasnt gon try to put a turbo on it I just wanted to be strait motor lik higher flowing heads off a ls6 and a ls6 intake new cam new rocker arms headers and a good tune I was thinking I would be between 400-450 am I right

one92rs

iTrader: (5)

first off you are looking at 5.3 engines. usually the ls2=3=6 heads have bigger combustion chambers meaning you would have to have them machined 30 thousands at least. ls3 heads do not belong on a 5.3 they belong on a 6.0 engine. your best bet would to be to get the lm3 or l33 and a good set of poerted 5.3 heads

88FormulaKiller

iTrader: (8)

saw all this L33 talk and had to join, im using an L33 in my swap and in the past 6 months of building the car ive talked to alot of RX7 and 240SX guys doing LS swaps and dont be fooled, some RX swappers have sqeezed 375-400 HP out of an L33, agressive cams, LT headers, Ls6 intake/TB/INJ, some porting... They are what i like to call potent "little LS1's". Pretty close in power to a stock LS1 (f-body pwr rated LS1). I'm almost set on adding a single turbo, HP chevy mag got 594 rwhp out of iron 5.3 they bought at an LKQ junk yard for cheap cheap $, i would think its safe to assume just a hair over 600 with an L33? its that or go LQ9 and be done with it.

1ADan

iTrader: (4)

LQ9's nice, but if you want to go forced induction, go LQ4 for the reduced compression. Would have been a good idea for me to follow my own advice, but a supercharger's not in the plans for a bit

88FormulaKiller

iTrader: (8)

i dont know Dan, i like the sound of 425hp stock... XD

1ADan

iTrader: (4)

i'll let you know what it sounds like when i finally get the fuel system done and in place

88FormulaKiller

iTrader: (8)

lmao! Hey try and get that thing done for August so we can go for a drive before winter!! Im on my last part hunt, a T56, i dont Want to go the GTO route but it looks like im not gonna have a choice, i might have to get the TQ arm mount dynodan used which is lotsa $$$, anyway, pickin up my full borla exhaust, RA2 hood and some other parts this weekend!!

Sorry I hijacked the thread!!! (at least its still all about LSX goodies!)

1bdbrd

iTrader: (1)

Don't forget that the 5.3s have stronger pistons than any other LS variant. Thicker ringlands which is normally the area that breaks with boost. The aluminum block 5.3s also got the stronger beefier LS2 rods and factory ls6 (minus the hollow valves) heads. A friend of mine has ran upper 8s in an rx7 with that engine with a gt2-3 cam, matching springs and a stock ls1 intake on e85. They are MORE than strong enough for the factory for a good amount of power. I think some on ls1tech are making 7-900rwhp with them with very minor changes.