Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet TFS-30210003

Brand:
Trick Flow Specialties
Manufacturer’s Part Number:
TFS-30210003
Part Type:
Cylinder Heads
Product Line:
Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet
Summit Racing Part Number:
TFS-30210003
UPC:
0842645120435
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.
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.
Camshaft Style:
Hydraulic roller
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 in.-20
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:
No
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
Cylinder Head Color:
Natural
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.

Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet

No longer will fans of the small block Chevy have to choose between vintage looks or modern cylinder head power—Trick Flow® DHC™ 175 cylinder heads give you both!

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. To keep with the vintage design, the heads are available with 69′ later or without 68′ earlier accessory bolt holes cast into them. 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.

Trick Flow® DHC™ 175 cylinder heads are available fully assembled or as bare castings. Sold individually.

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