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Trick Flow Specialties TFS-51400004 - Trick Flow® Twisted Wedge® 170 Cylinder Heads for Small Block Ford

  • Cylinder Heads, Twisted Wedge® 170, Fast As Cast®, Aluminum, Assembled, 61cc Chamber, Ford, Small Block, Pair
  • Application Specific
  • Additional Info
    • Substitute Part: TFS-51400004-M61
      The part number you requested is out of stock; however, the substitute item is very similar to the item you want.
  • Estimated Ship Date: 2/20/2012
 
BrandTrick Flow Specialties
Manufacturer's Part NumberTFS-51400004
Part TypeCylinder Heads
Product LineTrick Flow® Twisted Wedge® 170 Cylinder Heads for Small Block Ford
Summit Racing Part NumberTFS-51400004
 
Cylinder Head StyleAssembled
Cylinder Head MaterialAluminum
Cylinder Head FinishNatural
Combustion Chamber Volume (cc)61
CNC-Machined Combustion ChamberNo
Intake Runner Volume (cc)170cc
Exhaust Runner Volume (cc)66cc
CNC-Machined Intake RunnerNo
CNC-Machined Exhaust RunnerNo
Combustion Chamber StyleHeart
Intake Port LocationStandard
Exhaust Port ShapeSquare
Exhaust Port LocationStandard
Intake Valves IncludedYes
Intake Valve Diameter (in)2.020 in.
Exhaust Valves IncludedYes
Exhaust Valve Diameter (in)1.600 in.
Valve Springs IncludedYes
Maximum Valve Lift (in)0.600 in.
Outside Diameter of Outer Spring (in)1.460 in.
Damper Spring IncludedYes
Number of Springs Per ValveDual
Retainers IncludedYes
Retainer MaterialChromoly steel
Locks IncludedYes
Lock Style10 degree
Valve Stem Seals IncludedYes
Valve Stem Seal StyleViton® fluoroelastomer
Rocker Arm Studs IncludedYes
Rocker Arm Nut Thread Size3/8-24 in.
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Guideplates IncludedYes
Guideplate Pushrod Size5/16 in.
Accessory Bolt Holes DrilledYes
Intake Valve Angle15
Exhaust Valve Angle17
Valve Guides IncludedYes
Valve Guide MaterialManganese bronze
Valve Seats MachinedYes
Valve Seat Machine Style3-angle
Valve Seat MaterialTungsten
Steam Holes DrilledNo
Oiling StyleThrough pushrod
Machined for O-RingNo
Heat CrossoverYes
CARB EO NumberD-369-12 (pdf)
To see a list of qualifying vehicles, enter CARB EO Number D-369-12
QuantitySold as a pair.
NotesDesigned for hydraulic roller camshafts.
CalculatorCompression Calculator
 

Trick Flow® patented Twisted Wedge® 170 performance aluminum cylinder heads feature Trick Flow® revolutionary "twisted wedge" combustion chambers to build more midrange and top-end power without sacrificing bottom-end torque. Here's how it works: Trick Flow® engineers rotated the valves and moved them over the center of the cylinder bores. This optimizes the valve angles and the combustion chamber shape to dramatically boost airflow and allow for a more complete combustion of the air/fuel charge. And, unlike other brands, Trick Flow® Twisted Wedge® heads are the only aftermarket heads that can run 2.020 in./1.600 in. valves with stock, unmodified pistons and performance camshafts with up to 0.550 in. of lift. The Twisted Wedge® series heads are built for heavy-duty use, too. They have 0.560 in. thick combustion chamber walls and fire decks for added strength without a loss of cooling capacity, plus additional support risers in the water jackets for increased head gasket integrity. The Twisted Wedge® 170 heads are designed to be performance replacements for stock Ford heads and are 50-state emissions-legal on 1996 and earlier 289, 302, and 351W Fords (CARB E.O. #D-369-12). All Twisted Wedge® series heads work with most OEM and aftermarket intake and exhaust manifolds/headers. The heads come fully assembled and ready to install right out of the box with stainless steel valves (intakes are backcut for improved flow), valve springs, locks, retainers, ARP rocker studs, and guideplates. Bare cylinder head castings are also available.

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