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Stock 5.0L - Ford E7TE
Stock 5.0 (E7 castings)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 64cc
Hardware: Varies
Rocker Mount Type: Pedestal mount
Runner Volumes: Est. 135cc int. 45cc exh.
Valve Sizes: 1.78" intake 1.45" exhaust
50 State Smog Legal: Yes

Notes: Most castings have thermactor bumps in the exhaust port.
Stock 289 - Ford C6AE
Stock 289 (C4-C7 castings)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 54-58cc depending on year.
Hardware: Varies
Rocker Mount Type: Press in stud (screw in for HiPo)
Runner Volumes: 135cc int. 50cc exh.
Valve Sizes: 1.78" int. 1.45" exh.
50 State Smog Legal: No*

Notes: *Smog legal only on early engines. Some castings had thermactor bumps in the exhaust port. Test head did not have thermactor bump.
289 C6AE 289 C6AE
Home Ported 289 (Stock Valves)

Intake Swirl
lift
.100
.200
.300
.400
.500
.600
.700
rpm
350
360
540
700
815
900
960
Home Ported 289 (C6 casting)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 54cc
Hardware: Varies
Rocker Mount Type: Converted to screw-in
Runner Volumes: est. 135cc int. 50cc exh.
Valve Sizes: 1.78" int. 1.45" exh. - backcut
50 State Smog Legal: No
Stock 351W - Ford D0OE

* Flow data for this head from an external source. No swirl numbers available.
Stock 351W (C9, D0, D8, D9 castings)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 60-69cc depending on year.
Hardware: Varies
Rocker Mount Type: Press in stud
Runner Volumes: est 140cc int. 55cc exh.
Valve Sizes: 1.84" int. 1.54" exh.
50 State Smog Legal: No

Notes: *Smog legal only on early engines. Some castings had thermactor bumps in the exhaust port. Test head did not have thermactor bump.
Home Ported 351W (Stock Valves)

Intake Swirl
lift
.100
.200
.300
.400
.500
.600
.700
rpm
230
360
300
315
315
-
-
Home Ported 351W (D9)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 64cc
Hardware: Varies
Rocker Mount Type: Press in stud
Runner Volumes: est 140cc int. 55cc exh.
Valve Sizes: 1.84" int. 1.54" exh. -backcut
50 State Smog Legal: No
Home Ported 351W (1.94"/1.60" valves)

Intake Swirl
lift
.100
.200
.300
.400
.500
.600
.700
rpm
300
200
125
140
520
520
-
Home Ported 351W (D9)
Cost per pair: Varies
Material: Iron
Combustion Chamber Size: 64cc
Hardware: Varies
Rocker Mount Type: Press in stud
Runner Volumes: est 140cc int. 55cc exh.
Valve Sizes: 1.94" intake 1.60" exhaust
50 State Smog Legal: No
Power Heads by PC Auto - Ford C6OE

Intake Swirl
lift
.100
.200
.300
.400
.500
.600
.700
rpm
345
340
130
295
500
600
-
Power Heads by P.C. Automotive (289, E7)
Power HeadsCost per pair: $675 + shipping + core
Material: Iron Combustion
Chamber Size: Stock (289 = 54cc, early 302 = 59cc, E7 & 351W = 64 cc )
Hardware: Complete
Rocker Mount Type: Pedestal or Screw-in stud
Runner Volumes: Stock
Valve Sizes: 1.94" intake 1.60" exhaust
50 State Smog Legal: Depends on stock configuration.

Notes: P.C Automotive also offers early 289, early 302, E7, and 351 W heads. Flow data listed on the www.powerheads.com site are generated at 25" H20, which is not a standard test pressure.
Power Heads Power Heads
Stock Ford GT40P

* Flow data for this head from an external source. No swirl numbers available.
Ford GT40P
Cost per pair: $650*
Material: Iron
Combustion Chamber Size: 60cc
Hardware: Complete
Rocker Mount Type: Pedestal mount
Runner Volumes: 155cc int. est. 55cc exh.
Valve Sizes: 1.85" intake 1.46"
50 State Smog Legal: No

Notes: * For new assembled heads. Perhaps cheaper used. Found on Explorer/Mountaniers 1997-up.
GT40P photos courtesy Sean Meldrum Visit his GT40P dedicated site.
(Street Heads)
 
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