Pair of Trick Flow Twisted Wedge Track Heat 170CC Cylinder Heads for 289, 302 and 351W Engines.Aluminum heads for Ford bracket racers. These Trick Flow Twisted Wedge Track Heat series cylinder heads are capable of producing 600+ hp on naturally aspirated engines, they're the winningest heads in NMRA racing. Twisted Wedge Track Heat heads dominated so much that the NMRA saddled them with a weight penalty!
Twisted Wedge Track Heat heads include all of the features of the famous Twisted Wedge series heads, plus higher-rated valve springs (125 lbs. of seat pressure at 1.780 in. installed height), 10 degree machined steel super locks and manganese bronze guides to support camshafts with up to 0.600 in. of lift when used with the proper pistons. Track Heat 170 heads with Fast As Cast runners are perfect for dual-purpose street/strip cars and for racers looking for the best combination of performance and value. These heads feature cast intake and exhaust runners with Twisted Wedge CNC-ported profiles. You get near-CNC-ported power and performance for the price of ordinary cast heads.
Twisted Wedge Track Heat series heads work with most OEM and aftermarket intake and exhaust manifolds/headers. The heads are ready for installation straight out of the box. They come with stainless steel valves (the intakes are backcut), 1.460 in. dual valve springs, locks, retainers, ARP 7/16 in. rocker studs and guideplates.
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): 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: Yes
-Intake Valve Diameter (in): 2.020 in.
-Exhaust Valves Included: Yes
-Exhaust Valve Diameter (in): 1.600 in.
-Valve Springs Included: Yes
-Maximum Valve Lift (in): 0.600 in.
-Outside Diameter of Outer Spring (in): 1.460 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.
-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: Yes
-Valve Seat Machine Style: 3-angle
-Valve Seat Material: Ductile iron
-Steam Holes Drilled: No
-Oiling Style: Through pushrod
-Machined for O-Ring: No
-Heat Crossover: No
-Quantity: Sold as a pair
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This product will fit the following Ford Mustang years:
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