GM Engine Information (Looking for Transmission info?  Click here)

 

Quad-4 2.3L DOHC 4-cyl

1989-92 Quad-4 H.O. 2.3L vin A

1989-90 Quad-4 2.3L vin D

1991-92 Quad-4 2.3L vin D

 

3100 Aluminum Head OHV 60 V6

1994-96 3100 SFI V6 vin M

1997-04? 3100 SFI V6 vin M RPO LG8

 

3400 Aluminum Head OHV 60 V6

1996-04? 3400 SFI V6

 

3.4L OHV 60 V6

1993-95 3.4 SFI V6 vin S

 

3.4L TDC/DOHC 60 V6

1991-95 3.4 Twin-Dual Cam V6 vin X

1996-97 3.4 Dual-Overhead Cam SFI V6 vin X

 

3.5L DOHC LX5 90 V6

 

3500 LX9, LZ4, LZE OHV 60 V6

 

3.6L LY7 DOHC VVT 60 V6

 

3.6L LLT DOHC VVT DI 60 V6

 

3900 LZ9 OHV 60 V6

 

Buick 90 V6

1984-85 3.8L MFI Turbo vin 9

1986-87 3.8L SFI Intercooled Turbo vin 7

1986-88 3.8L SFI V6 vin 3

1986 3.8L SFI V6 vin B

1988-91 3800 V6 SFI vin C

1989-93 3300 V6 MFI vin N

1989 3.8L SFI Intercooled Turbo vin 7 (Turbo Trans Am)

1991-95 3800 V6 TPI vin L

1992-93 3800 V6 Supercharged vin 1

1994-95 3800 V6 Supercharged vin 1

Special notes considering the differences between the Series 1 L & C 3800 engines: The vin L 3800's cylinder heads were the first to feature an integral PCV ventilation system that was found in all subsequent 3800 and 3800 Series II engines.  This means that the earlier vin C 3800 heads will not work on a vin L 3800 engine.  Also, there are differences between the Supercharged (vin 1) and TPI (vin L) versions of the 3800 besides the intake and assy belt drive system.  The SC engine uses stronger connecting rods and pistons which also makes the balance different concerning the crankshaft/rotating assy; compared to the Vin L engines.

 

3800 Series 2 & 3 90 V6

1995-05 3800 Series 2 SFI V6 vin K RPO L36

1996-05 3800 Series 2 Supercharged V6 vin 1 RPO L67

2004-08 3800 Series 3 SFI V6 vin 2 RPO L26

2004-07 3800 Series 3 Supercharged V6 vin 4 RPO L32

Special notes considering the 3800 Series II N/A and SC engines: The series II 3800 is a redesigned version of the 3800 (Series 1) V6.  The Series II and III blocks have a shorter deck height, symmetrical design cylinder heads & cross-bolted main bearing caps among most of the major differences they have with their predecessor.  The Supercharged version of the Series II and III engines share the same crankshaft and heads as the naturally aspirated versions but the heads on the SC versions have bosses machined for injectors, and the crank is balanced differently because the SC versions have beefier connecting rods and pistons.  The SC pistons are also of a special casting and have a thermal coating on their tops designed to reflect heat back into the combustion process.  The pistons, connecting rods, and piston pins used in the naturally aspirated versions of this engine are NOT designed for use with boost and are significantly weaker than their supercharged counterparts.  Other differences between the N/A and SC engines are the amount of counter-balance of the harmonic balancer, flexplate/flywheel, and balance shaft.  All 3800 Series II and III engines are considered to be "externally balanced".

 

Chevy 4.3L 90 V6

1989-91 4.3L TBI V6 vin Z

1992-95 4.3L CFI V6 vin W Vortec (early)

1992-93 4.3L PFI Intercooled Turbo V6 vin Z (Syclone / Typhoon AWD Truck)

1993-95 4.3L TBI V6 vin Z Vortec (early)

1996-up 4.3L CSFI V6 vin X&W Vortec (late)

 

Small Block Chevy V8

1982-92 Small Block Chevy 305 (5.0L) V8 [F-body applications]

Year Displacement VIN Fuel Delivery Compression HP @RPM TQ @RPM
1982 V8-305 7 Cross-Fire FI 9.5 165 @ 4200 240 @ 2400
1983 V8-305 S Cross-Fire FI 9.5 175 @ 4200 250 @ 2800
1984 V8-305 HO G 4 bbl Elec Carb 9.5 190 @ 4800 240 @ 3200
1985 V8-305 F Tuned Port FI 9.5 215 @ 4400 275 @ 3200
1986 V8-305 F Tuned Port FI 9.5 190 @ 4000 285 @ 2800
1987-89 V8-305 F Tuned Port FI 9.3 220-230 @ 4400 290-300 @ 3200
1989-92 V8-305 E Throttle Body FI 9.3 170 @ 4000 255 @ 2400
1990-92 V8-305 F Tuned Port FI 9.3 205-230 @ 4400 285-300 @ 3200

 

1982-92 Small Block Chevy 350 (5.7L) V8

Year Displacement Body VIN Fuel Delivery Compression HP @RPM TQ @RPM
1982 V8-350 Y 6 Cross-Fire FI 9.0 200 @ 4200 285 @ 2800
1984 V8-350 Y 8 Cross-Fire FI 9.0 205 @ 4300 290 @ 2800
1985 V8-350 Y 8 Tuned Port FI 9.0 230 @ 4000 330 @ 3200
1986 V8-350 Y 8 Tuned Port FI 9.5 230 @ 4000 330 @ 3200
1987 V8-350 F 8 Tuned Port FI 9.0 225 @ 4400 300 @ 2800
1987 V8-350 Y 8 Tuned Port FI 9.5 240 @ 4000 345 @ 3200
1988-92 V8-350 F 8 Tuned Port FI 9.3 230-240 @ 4400 330-340 @ 3200
1988-92 V8-350 Y 8 Tuned Port FI 9.3 240-245 @ 4400 345 @ 3200

 

1992-97 Small Block Chevy LT1 (5.7L) V8

Year Displacement Body VIN Fuel Delivery Compression HP @RPM TQ @RPM
1992-94 V8-350 Y P MFI / SFI 10.5 300 @ 5000 330 @ 4000
1993-95 V8-350 F P MFI / SFI 10.2 275 @ 5000 325 @ 3400
1994-96 V8-350 B P SFI 10.0 260 @ 5000 330-335 @ 3400
1995-96 V8-350 Y P SFI 10.5 300 @ 5000 340 @ 4000
1996-97 V8-350 F P SFI 10.4 285 @ 5000 325 @ 3400
1996-97 V8-350 F* P SFI 10.4 305 @ 5400 335 @ 3200
1996 V8-350 Y 5 LT4 SFI 10.6 330 @ 5800 340 @ 4500

 

1996-up 5.0L Vortec CSFI V8 L30 Vin M

1996-up 5.7L Vortec CSFI V8 L31 Vin R

 

Other GM V8 Engines

Cadillac Northstar 4.6L DOHC V8 Vin 9

Cadillac Northstar 4.6L DOHC V8 Vin Y

Cadillac Northstar 4.6L DOHC VVT V8 RPO: LH2

Cadillac Northstar 4.4L DOHC VVT V8 Supercharged RPO: LC3

Cadillac 4.5L DFI V8 Vin 5

Cadillac 4.5L SPFI V8 Vin 3

Cadillac 4.9L PFI V8 Vin B

Oldsmobile Aurora 4.0L DOHC V8 Vin C

1991-94 Corvette V8-350 LT5 DOHC Vin J

LS1 V8-346 (5.7L) Vin G

LS2 V8-364 (6.0L)

LS3 V8-376 (6.2L) Corvette

LS4 V8-325 (5.3L) FWD

LS6 V8-346 (5.7L) Corvette and CTS-V

LS7 V8-427 (7.0L) Corvette

 Vortec 7400 (7.4L V8-454) SFI L29

 Vortec 8100 (8.1L V8-497) SFI L18

 

 

This information should be used as a reference guide only.  Please consult your local dealership for your specific application and needs.

 

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http://media.gm.com/content/media/us/en/news.brand_gm.html/GM/EN/News/PowertrainDetails

 

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Page updated on: 01-08-2010