Trick Flow Specialties TFS-30210002 - Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet

Trick Flow® DHC™ 175 Cylinder Heads for Small Block Chevrolet TFS-30210002

Cylinder Head, DHC™ 175, Fast As Cast®, Assembled, 1.470 in. Springs, No Accessory Bolt Holes, Small Chevy, Each

Part Number:

TFS-30210002

Part Type:

Cylinder Heads

Product Line:

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

UPC:

0842645120428

Cylinder Head Style:

Assembled

Cylinder Head Material:

Aluminum

Intake Port Shape:

Rectangular

Intake Valve Diameter (in):

2.020 in.

Cylinder Head Finish:

Natural

Combustion Chamber Volume (cc):

CNC-Machined Combustion Chamber:

Yes

Intake Runner Volume (cc):

175cc

Exhaust Runner Volume (cc):

74cc

CNC-Machined Intake Runner:

CNC-Machined Exhaust Runner:

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):

0.540 in.

Outside Diameter of Outer Spring (in):

1.470 in.

Damper Spring Included:

Number of Springs Per Valve:

Single

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:

Rocker Arm Nuts Included:

Guideplates Included:

Yes

Guideplate Pushrod Size:

5/16 in.

Valve Cover Mounting Style:

Perimeter bolt

Accessory Bolt Holes Drilled:

Intake Valve Angle:

Exhaust Valve Angle:

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:

Oiling Style:

Through pushrod

Machined for O-Ring:

Heat Crossover:

Yes

Quantity:

Sold individually.

Notes:

For use with a minimum bore diameter of 4.000 in.

Nostalgic appearance—check.
Modern performance—check.
The best of both—checkmate!

Trick Flow’s DHC 175 cylinder heads give small block Chevy enthusiasts a new performance option. No longer will anyone have to choose between vintage looks or modern cylinder head power—with DHC 175 heads you get both!

DHC 175 heads are made from premium grade A356-T61 aluminum and have the exterior styling and straight spark plug holes that deliver the nostalgic appearance customers want. On the inside, 60cc CNC-profiled combustion chambers with blended bowl machining 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. In keeping with the vintage design, the heads are available with or without accessory bolt holes cast into them.

Other performance improvements include bronze alloy valve guides, ductile iron valve seats, and multi-angle valve seat machining on precision Serdi® equipment. Plus, the decks and walls are cast extra thick to increase casting strength and provide plenty of material for future porting.

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

Warranty