Won't crack, splinter or break nails!
JD490 Air and Exhaust parts.
48mm x 32mm ports.
50mm x 42mm ports.
4x84mm bolt PCD. 60mm ID.
Side rear outlet. 68mm bolt centres at 120mm spacings to head. 4x80mm PCD bolt centres to exhaust pipe. 40mm x 35mm throats. Cast iron construction.
1 required per cylinder. 68mm bolt hole centres. 36mm x 40mm throat.