M-6049-Z304D 302/351W "Z-HEAD" ALUMINUM HEAD - BARE 63CC

Bare Head FeaturesFor assembled head see M-6049-Z304DA  Fits 302/351 Windsor engines

This cylinder head was designed using Solid Modeling Technology

Cast from prime A356 T6 aluminum

Heads are cast with high-flow ports

20 degree inline valves

Suggested valve sizes: 2.02" intake and 1.60" exhaust

Requires competition valve job and bowl blending

Steel alloy intake and exhaust valve seats installed (no valve job)

Manganese-bronze valve guides installed with semi-finished ID

63cc CNC'd combustion chamber

Intake port volume as cast: 204cc

Exhaust port volume as cast: 85cc

Bare head weighs 27 lbs.

Accepts both tapered seat and gasket style 14mm spark plugs (Motorcraft AGSP-32-PP, Autolite 3924, 3925)

Requires guide plate M-6566-Z304D (not included)

Requires 7/16" screw-in studs (not included). Requires M-6564-F351 1.65:1 or M-6564-G351C 1.5:1 ratio roller rocker arms with .150" offset intake pushrod cup (not included)

Uses M-6505-B304 exhaust valve and M-6507-A304 intake valve (not included)

Raised exhaust port exit, custom headers may be required

Check your intake manifold for port match; not all intakes are compatible due to the tall high-flow ports. Does not fit M-9424-Z51/-Z51P

Uses Felpro exhaust gasket part number 1487

Felpro VS13264T valve cover gasket recommended