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Southern Performance Systems
Phone: 678-482-0866
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Today's Muscle Engines for Yesterday's
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Engine
Code

Displacement

Block
Material

AFM/VVT

Compression
Ratio

Horse Power/
Torque

Fuel Type

Years
Produced

LY2

4.8 Liters

Cast Iron

None

9.1:1

295/305

Regular Unleaded

2008-2009

L20

4.8 Liters

Cast Iron

VVT

8.8:1

302/305

Reg/E85

2010

LM7

5.3 Liters

Cast Iron

None

9.5:1

295/335

Regular Unleaded

2001-2006

L59

5.3 Liters

Cast Iron

None

9.5:1

295/335

Regular Unleaded

2005-2006

L33

5.3 Liters

Aluminum

None

9.9:1

310/335

Regular Unleaded

2005-2006

LY5

5.3 Liters

Cast Iron

AFM

9.9:1

315/340

Regular Unleaded

2007-2009

LH6

5.3 Liters

Aluminum

AFM

9.9:1

315/338

Regular Unleaded

2007-2009

LMG

5.3 Liters

Cast Iron

AFM (07-09)
AFM & VVT
(2010)

9.9:1

320/340

Reg/E85

2007-2010

LC9

5.3 Liters

Aluminum

AFM (07-09)
AFM & VVT
(2010)

9.9:1

315/338

Reg/E85

2007-2010

LH8

5.3 Liters

Aluminum

None

9.9:1

300/320

Regular Unleaded

2008+

LS1

5.7 Liters

Aluminum

None

10.1:1

300/320

Premium Unleaded

1997-2004

LS6

5.7 Liters

Aluminum

None

10.5:1

400/400

Premium Unleaded

2001-2005

LQ4

6.0 Liters

Cast Iron

None

9.4:1

300/360

Regular Unleaded

2002-2006

LQ9

6.0 Liters

Cast Iron

None

10.1:1

345/380

Premium Unleaded

2003-2006

L76

6.0 Liters

Aluminum

AFM or
AFM & VVT

9.6:1

367/375

Regular Unleaded

2007-2009

LY6

6.0 Liters

Cast Iron

VVT

9.6:1

353/373

Regular Unleaded

2007-2009

L96

6.0 Liters

Cast Iron

VVT

9.6:1

360/380

Reg/E85

2010

LFA

6.0 Liters

Aluminum

AFM

10.8:1

332/367

Reg/E85

2009 Hybrids

LZ1

6.0 Liters

Aluminum

AFM & VVT

10.78:1

332/367

Reg/E85

2010 Hybrids

LS2

6.0 Liters

Aluminum

None

10.9:1

400/400

Premium Unleaded

2005-2007

L92

6.2 Liters

Aluminum

VVT

10.5:1

403/417

Premium Unleaded

2007-2009

L94

6.2 Liters

Aluminum

AFM & VVT

10.5:1

403/417

Premium/e85

2010

L99

6.2 Liters

Aluminum

AFM & VVT

10.4:1

400/410

Regular/Premium

2010

LS3

6.2 Liters

Aluminum

None

10.7:1

430/424

Premium Unleaded

2008-2010

LSA

6.2 Liters

Aluminum

None

9.1:1

556/551

Premium Unleaded

2010

LS9

6.2 Liters

Aluminum

None

9.1:1

638/604

Premium Unleaded

2010

LS7

7.0 Liters

Aluminum

None

11.1:1

505/470

Premium Unleaded

2006-2010

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Site Updated: 8/28/17