Pair of Trick Flow Twisted Wedge Race 206CC Cylinder Heads Machined for O-Ring Gaskets and with Upgraded Springs for 289, 302 and 351W Engines.Race and win with Trick Flow heads. Made just for racing-and winning-Trick Flow Twisted Wedge Race 206 heads feature fully CNC-profiled "twisted wedge" combustion chambers, plus Fast As Cast 206cc intake runners, and 92cc exhaust runners raised 0.500 in. from stock. The heads are machined for big 2.080 in. intake/1.600 in. exhaust valves and flow 305 cfm through the intake runners and 235 cfm out the exhaust runners at 0.700 in. of valve lift-right from the box!
The Twisted Wedge Race 206 heads have other race-ready features, additional material for porting, a .560" thick deck, intake port shaping for Fel-Pro 1262 intake gaskets, stud mounts for roller rocker arms, spring pockets machined for 1.630 in. valve springs, bronze valve guides, tungsten alloy intake seats and copper bronze exhaust seats. The fully assembled heads are designed with 1.560 in. dual valve springs for mechanical roller camshafts up to 0.720 in. of valve lift. ARP 7/16 in. rocker arm studs and 5/16 in. guideplates round out the package.
Cylinder Head Specifications and Contents:
-Cylinder Head Style: Assembled
-Cylinder Head Material: Aluminum
-Cylinder Head Finish: Natural
-Combustion Chamber Volume (cc): 61
-CNC-Machined Combustion Chamber: Yes
-Intake Runner Volume (cc): 206cc
-Exhaust Runner Volume (cc): 92cc
-CNC-Machined Intake Runner: No
-CNC-Machined Exhaust Runner: No
-Combustion Chamber Style: Heart
-Intake Port Location: Standard
-Exhaust Port Shape: Round
-Exhaust Port Location: Raised
-Intake Valves Included: Yes
-Intake Valve Diameter (in): 2.080 in.
-Exhaust Valves Included: Yes
-Exhaust Valve Diameter (in): 1.600 in.
-Valve Springs Included: Yes
-Maximum Valve Lift (in): 0.720 in.
-Outside Diameter of Outer Spring (in): 1.560 in.
-Damper Spring Included: Yes
-Number of Springs Per Valve: Dual
-Retainers Included: Yes
-Retainer Material: Chromoly steel
-Locks Included: Yes
-Lock Style: 10 degree
-Valve Stem Seals Included: Yes
-Valve Stem Seal Style: Viton fluoroelastomer
-Rocker Arm Studs Included: Yes
-Rocker Arm Nut Thread Size: 7/16-20 in.
-Rocker Arms Included: No
-Rocker Arm Nuts Included: No
-Guideplates Included: Yes
-Guideplate Pushrod Size: 5/16 in.
-Valve Cover Mounting Style: Perimeter bolt
-Accessory Bolt Holes Drilled: Yes
-Intake Valve Angle: 15
-Exhaust Valve Angle: 17
-Valve Guides Included: Yes
-Valve Guide Material: Bronze
-Valve Seats Machined: Yes
-Valve Seat Machine Style: 3-angle
-Valve Seat Material: Tungsten alloy intake/Copper bronze alloy exhaust
-Steam Holes Drilled: No
-Oiling Style: Through pushrod
-Machined for O-Ring: Yes
-Heat Crossover: No
-Quantity: Sold as a pair
*Designed for use with mechanical roller camshafts.
*Requires custom-built headers.
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This product will fit the following Ford Mustang years:
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