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.
Engine Identification
| GENERAL SPECIFICATIONS | ||||||
|---|---|---|---|---|---|---|
| Engine | Net HP At RPM | Torque (Ft. Lbs. at RPM) | Compr. Ratio | Bore | Stroke | Displ. Cu. Ins. |
| 318" 2-Bbl. | 150 @ 4000 | 225 @ 2200 | 8.6-1 | 3.91" | 3.31" | 318" |
| 318" 2-Bbl. | 170 @ 4000 | 265 @ 2200 | 8.6-1 | 3.91" | 3.31" | 318" |
| 318" 2-Bbl. | 150 @ 4000 | 255 @ 2200 | 8.6-1 | 3.91" | 3.31" | 318" |
| 360" 2-Bbl. | 180 @ 4000 | 290 @ 2400 | 8.4-1 | 4.00" | 3.58" | 360" |
| 360" 4-Bbl. | 200 @ 4000 | 290 @ 3200 | 8.4-1 | 4.00" | 3.58" | 360" |
| 360" 4-Bbl. | 245 @ 4800 | 320 @ 3600 | 8.4-1 | 4.00" | 3.58" | 360" |
| 400" 2-Bbl. | 185 @ 4000 | 315 @ 2400 | 8.2-1 | 4.32" | 3.375" | 400" |
| 400" 4-Bbl. | 205 @ 4400 | 310 @ 2400 | 8.2-1 | 4.32" | 3.375" | 400" |
| 400" 4-Bbl. | 240 @ 4800 | 320 @ 3200 | 8.2-1 | 4.32" | 3.375" | 400" |
| 400" 4-Bbl. | 250 @ 4800 | 330 @ 3400 | 8.2-1 | 4.32" | 3.375" | 400" |
| 440" 4-Bbl. | 230 @ 4000 | 350 @ 3200 | 8.2-1 | 4.32" | 3.75" | 440" |
| 440" 4-Bbl. | 250 @ 4000 | 350 @ 3200 | 8.2-1 | 4.32" | 3.75" | 440" |
| 440" 4-Bbl. | 275 @ 4400 | 375 @ 3200 | 8.2-1 | 4.32" | 3.75" | 440" |
Engine identification number locations are as follows: 318" and 360" on left front of block below cylinder head; 400" and 440" on cylinder block just forward of number two cylinder bore and adjacent to distributor. Number is decoded as follows on 318" and 360":
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.