Twisted Wedge Track Heat series cylinder heads are capable of producing 600+ HP on naturally aspirated engines. Assembled heads include stainless steel valves (intakes are undercut), 1.460" diameter higher-rated valve springs (125 lbs seat pressure @ 1.780" installed height) 10ø machined steel super locks, manganese bronze valve guides to support camshafts with up to 0.600" lift, 5/16" pushrod guide plates, 7/16" rocker arm studs, and heads are machined to accept 1/2" head bolts. Sold individually.
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- Yes
- Combustion Chamber Volume (cc):
- 61cc
- Combustion Chamber Style:
- Twisted Wedge
- CNC-Machined Intake Runner:
- No
- Intake Runner Volume (cc):
- 170cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 15 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 66cc
- Exhaust Port Shape:
- Square
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- 17 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.020 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.600 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- 0.600 in.
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Dual W/Damper
- Outside Diameter of Outer Spring (in.):
- 1.460 in.
- Valve Guides Included:
- Yes
- Valve Guide Material:
- Bronze
- Valve Seats Machined:
- Yes
- Valve Seat Material:
- Ductile iron
- Valve Seat Machine Style:
- 3-angle
- Retainers Included:
- Yes
- Retainer Material:
- Chromoly
- Valve Stem Seals Included:
- Yes
- Valve Stem Seal Style:
- Viton Positive stop
- Locks Included:
- Yes
- Lock Style:
- 10 degree
- Camshaft Style:
- Hydraulic roller
- Spark Plug Style:
- Angled
- Guideplates Included:
- Yes
- Guideplate Pushrod Size:
- 5/16 in.
- Rocker Arm Studs Included:
- Yes
- Rocker Arm Nut Thread Size:
- 7/16-20 in.
- Accessory Bolt Holes Drilled:
- Yes
- Valve Cover Mounting Style:
- Perimeter bolt
- Heat Crossover:
- No
- Steam Holes Drilled:
- No
- Oiling Style:
- Through pushrod
- Machined for O-Ring:
- No
- Quantity:
- Sold individually.
- Notes:
- Trick Flow twisted wedge pistons are required for use with these heads to allow for piston to valve clearance with camshafts over .550 in. lift. Heads are drilled to accept 1/2 in. head bolts. Valve cover rail is raised .350 in. over stock.
- Make:
- Ford
- Engine Family:
- Ford small block Windsor
- Engine Sizes:
- 4.7L/289-5.8L/351
- Years:
- 1963-2001
