Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1997ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSENGINE CONFIGURATION SPECIFICATIONS
1997 Chevrolet Astro Van 2WD V6-4.3L VIN W
Engine Configuration Specifications
1997 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Engine Configuration Specifications
Engine Type V6
Regular Production Option
(RPO) Code
RPO Code LF6 Vin Code X
RPO Code L35 Vin Code W
Displacement 4.3L (262 CID)
Bore 101.60 mm (4.012 inch)
Stroke 88.39 mm (3.480 inch)
Compression Ratio 9.2:1
Spark Plug Gap 1.52 mm (0.060 inch)
Oil Pressure (Minimum)
At Operating Temperature
A 42 kPa at 1,000 RPM (6 psig at 1,000 RPM)
B 125 kPa at 2,000 RPM (18 psig at 2,000 RPM)
C 166 kPa at 4,000 RPM (24 psig at 4,000 RPM)
Regular Production Option
(RPO) Code
RPO Code LF6 Vin Code X
RPO Code L35 Vin Code W
Displacement 4.3L (262 CID)
Bore 101.60 mm (4.012 inch)
Stroke 88.39 mm (3.480 inch)
Compression Ratio 9.2:1
Spark Plug Gap 1.52 mm (0.060 inch)
Oil Pressure (Minimum)
At Operating Temperature
A 42 kPa at 1,000 RPM (6 psig at 1,000 RPM)
B 125 kPa at 2,000 RPM (18 psig at 2,000 RPM)
C 166 kPa at 4,000 RPM (24 psig at 4,000 RPM)
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.