Ford Boss 429 Mustang street engine crank damper

heavy NASCAR bolt, ground hardened carbon washer,

bevel nose spacer and CORRECT Boss 429 Woodruff key.

4 pieces only.

As shown in first 2 photos only.

Crank damper is NOT included. Extra key NOT included.

There’s a reason that Woodruff key you just got, don’t fit!

Boss Performance

Parting out an original 10,000 mile ‘70 Boss 429 street engine.

Heads, intake, distributor, carburetor, ‘70 fan, spacer, etc.

Have an NOS C9AX NASCAR crank damper with gear ⚙️

in original H/M box, NOT included.

Refer to our Boss 429 books for exact Ford part numbers!

Our Boss 429 timing pointers are spot on!