Ford Performance "Z" Head assembled with 7mm Valvs
◾Fits 302/351 Windsor engines
◾Cast from prime A356 T6 aluminum
◾Heads are cast with high-flow ports
◾20 degree inline valves
◾Premium stainless steel lightweight 7MM 2.02" intake M-6507-D3047 and 1.60" M-6505-D3047 exhaust valves
◾Uses PAC 1219X conical style valve springs with machined retainers and machined valve locks. Most hydraulic cams can be used with these springs.
· Valve spring closed pressure - 145 lbs. @1.800"
· Valve spring open pressure - 358 lbs. @ 1.175"
◾Includes laser cut guide plates M-6566-Z304D for use with 5/16" pushrods and 7/16" rocker studs
◾Steel alloy intake and exhaust valve seats
◾Manganese-bronze valve guides
◾63cc CNC'd combustion chamber
◾Intake port volume as cast: 204cc
◾Exhaust port volume as cast: 85cc
◾Accepts both tapered seat and gasket style 14mm spark plugs (Motorcraft AGSP-32-PP, Autolite 3924, 3925)
◾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)
◾Raised exhaust port exit, custom headers may be required
◾Check piston to valve clearance including radial valve clearance before installing these cylinder heads on your engine
◾Uses Felpro® exhaust gasket part number 1487
Price is per head.
Contact Lonnie @ 386-843-8009 to place your orders or with any questions.