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.

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HOMESERVICE MANUALSBUICK1973APOLLO NOT AVAILABLE, 4.1L ENG VIN D, STANDARD TRANSREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALENGINE IDENTIFICATION1971 MODELSNOTES

1973 Buick Apollo Not Available, 4.1L Eng VIN D, Standard Trans

1971 Models: Notes

1973 Buick Apollo Not Available, 4.1L Eng VIN D, Standard TransSECTION Notes

Engine Code

Displ. & Carb.

Comp. Ratio

⁽¹⁾

250" 6 1-Bbl.

8.5-1

350" V8 2-Bbl.

8.5-1

350" V8 2-Bbl.

8.5-1

350" V8 4-Bbl.

8.5-1

350" V8 4-Bbl.

8.5-1

455" V8 4-Bbl

8.5-1

455" V8 4-Bbl.

8.5-1

455" V8 4-Bbl. Stage 1

8.5-1

⁽¹⁾	6 cylinder engines do not have engine code designation.

RENDER: 1.0x

NO RELATED

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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.