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ENGINE COMPONENTS CRANKSHAFT DAMPERS M-6316-A460 M-6316-A50/M-6316-C351 M-6316-A50 PART NUMBER ENGINE BALANCE NOTES MASS (LBS) M-6316-A50 302 (1981-1993) 50 oz.-in. Meets SFI 18-1➀➁➂➄ 12.1 M-6316-C351 302/351 HO 28.2 oz.-in. Meets SFI 18-1➀➁➂➅ 11.5 M-6316-A460 429/460 Neutral Meets SFI 18-1 10.1 M-6316-A521 514/521 Neutral Meets SFI 18-1➃ 10.1 M-6316-D302 302/351 Neutral Meets SFI 18-1➁➂➅ 10.6 NOTES: ➀ Damper has removable weight that allows use as a neutral balance unit for internally balanced crankshafts. 1994-2001 Mustang and Explorer requires modification. ➁ Does not clear early timing chain cover with rear installed seal. ➂ 3.000" overall length. ➃ Tuned for use on 521 crate engine. ➄ Passenger-side 11-o'clock timing marks only. ➅ Passenger-side 11-o'clock timing marks and driver-side 2-o'clock timing marks. CRANKSHAFT PULLEY SPACERS Use these crank pulley spacers with Ford Racing M-6316-C351/A50/D302 crank dampers to achieve proper belt alignment on past model 302 and 351 Windsor engines. PART NUMBER ENGINE YEAR CRANK PULLEY BOLT PATTERN SPACER THICKNESS M-8510-A351 302/351W 1979 and earlier 4 0.350" M-8510-B351 302 1980 and later 4 0.950" 351W 0.950" M-8510-C351 302➀ 1980 and later 4 0.875" 351W➀ All 0.875" M-8510-D351 302➀/ 351W➀ All 4 0.909" NOTE: ➀ With 0.917" Ford Racing crank sprocket. INSTALLATION NOTES Early 3-bolt crank pulleys generally bolt directly to the damper (damper is drilled for 3- and 4-bolt patterns). Sheave alignment should be checked and any misalignment corrected with the proper thickness spacer. Crankshaft Pulley Spacer M-8510-A351 shown For important information about the proper usage of performance parts, please see page 14. See pages 286-292 for important safety, emissions and warranty information. www.fordracingparts.com 139


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