S&S, rocker arm housing set. Polished - 36-47 Knucklehead; S&S KN-series engines (NU) 500302 Springer-style bars have 4-3/4" center

Springer-style bars have 4-3/4" center diamond knurling for a smooth finished look

These heads are ready to run and will accept camshafts with a lift of up to

When ordering hanger stem for under-mount applications

- Red LEDs

dimensions: 25cm x 18 cm x 8cm

S&S, rocker arm housing set. Polished - 36-47 Knucklehead; S&S KN-series engines (NU) 500302 Springer-style bars have 4-3/4" centerPolished sand cast aluminum finish. Reproduction of the OEM front & rear rocker arm housings, perfect for restaurations. Replaces front OEM 90 36 (36 47 Knuckle) Replaces rear OEM 91 36 (36 40 Knuckles) and 91 41 (41 47 Knuckles) housings.