Trick Flow DHC SBC 175cc Aluminum Cylinder Heads for Small Block Chevrolet - With Accessory Bolt Holes
Made from premium grade, lightweight A356-T61 aluminum, DHC 175 heads feature the exterior styling and straight spark plug holes that deliver the nostalgic appearance of the original factory performance 186, 291, 461, 462 "double hump" or "camel back" castings that customers want. 60cc CNC-profiled combustion chambers combined with a state of the art valve job and CNC blended bowl work under the valves and small cross-section intake runners promote low-RPM torque increases and boost high-RPM horsepower.
The runners are finished with Trick Flow's superior Fast As Cast process that precisely duplicates the runner profile and performance levels of fully CNC-ported heads without the added machining cost. Ductile iron valve seats for use with unleaded fuel, stainless steel valves, bronze alloy valve guides, multi-angle valve seat machining, and decks and walls cast extra thick for increased casting strength and to provide extra room for porting round out the features. These TFS-30210007 feature accessory bolt holes for 69' and later setups. Search our store for TFS-30210003 for 68' earlier without accessory bolt holes.
Cylinder Head, DHC 175, Fast As Cast, Assembled, 1.460 in. Springs, Accessory Bolt Holes, Small Chevy, Each
Brand: TFS - Trick Flow Specialties
Manufacturer's Part Number: TFS-30210007
Combustion Chamber Volume (cc): 60
Intake Runner Volume (cc): 175cc
Exhaust Runner Volume (cc): 74cc
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Intake Port Shape: Rectangular
Intake Valve Diameter (in): 2.020 in.
Cylinder Head Finish: Natural
CNC-Machined Combustion Chamber: Yes
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Spark Plug Style: Straight
Intake Valves Included: Yes
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: No
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Positive stop
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: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: 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: Yes
Quantity: Sold individually.
Notes: For use with a minimum bore diameter of 4.000 in.
- Item Requires Shipping
- 40.0 lbs.
- W12.0000” x H12.0000” x L24.0000”
- Free Basic Shipping
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