UnderDog Diesel » Single; (1/4"). Crank key modifications may be required on some 429 Boss engines - may need stepped key. Key slot width and length may be different. May be used on 332, 352, 390, 427, 428 "FE" engines when the sleeve between the damper and the timing g

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  • Keyway Type: Single; (1/4"). Crank key modifications may be required on some 429 Boss engines - may need stepped key. Key slot width and length may be different. May be used on 332, 352, 390, 427, 428 "FE" engines when the sleeve between the damper and the timing g

View Universal items for: Single; (1/4"). Crank key modifications may be required on some 429 Boss engines - may need stepped key. Key slot width and length may be different. May be used on 332, 352, 390, 427, 428 "FE" engines when the sleeve between the damper and the timing g


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View Universal items for: Single; (1/4"). Crank key modifications may be required on some 429 Boss engines - may need stepped key. Key slot width and length may be different. May be used on 332, 352, 390, 427, 428 "FE" engines when the sleeve between the damper and the timing g