Twisted Wedge 170cc Bare

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Price:

$1,799.00

SKU:

TFS-5141B002

Brand:

Trickflow

Shipping:

$35.00 (Fixed shipping cost)

Trick Flow® patented Twisted Wedge® 170 performance aluminum cylinder heads feature

Trick Flow® revolutionary "twisted wedge" combustion chambers to build more mid-range

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 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 up to 0.550 in. 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 as a

performance replacement for stock Ford heads and are 50-state emissions-legal on 1996

and earlier 289, 302, and 351W Fords (CARB E.O. number 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.

Cylinder Head Style		Bare
Cylinder Head Material		Aluminum
Cylinder Head Finish		Natural
Combustion Chamber Volume (cc)		61
CNC-Machined Combustion Chamber		No
Intake Runner Volume (cc)		170cc
Exhaust Runner Volume (cc)		66cc
CNC-Machined Intake Runner		No
CNC-Machined Exhaust Runner		No
Combustion Chamber Style		Heart
Intake Port Location		Standard
Exhaust Port Shape		Square
Exhaust Port Location		Standard
Intake Valves Included		No
Intake Valve Diameter (in)		2.020 in.
Exhaust Valves Included		No
Exhaust Valve Diameter (in)		1.600 in.
Valve Springs Included		No
Damper Spring Included		No
Retainers Included		No
Locks Included		No
Valve Stem Seals Included		No
Rocker Arm Studs Included		No
Rocker Arms Included		No
Rocker Arm Nuts Included		No
Guideplates Included		No
Accessory Bolt Holes Drilled		Yes
Intake Valve Angle		15
Exhaust Valve Angle		17
Valve Guides Included		Yes
Valve Guide Material		Manganese bronze
Valve Seats Machined		No
Valve Seat Machine Style		Un-machined seat
Valve Seat Material		Tungsten
Steam Holes Drilled		No
Oiling Style		Through pushrod
Machined for O-Ring		No
Heat Crossover		Yes