Drag Illustrated Issue 150, November 2019 | Page 21

Old School Looks
with Modern Performance.
You don’t have to choose between vintage looks and modern
power for your small block Chevy—Trick Flow DHC™ 175 heads
deliver both!
The aluminum heads have the exterior styling and straight spark
plug holes that nostalgia buffs prefer. On the inside, CNC-profi led
chambers, Fast As Cast ® runners, and a small cross-section intake
design deliver the performance that power fans crave.
Trick Flow DHC 175 cylinder heads come fully assembled—just
paint them Chevy Orange and they’re good to go. Heads
are sold individually; they are available with or without
accessory bolt holes.
Dyno Results
Airfl ow Results
DHC 175
Test Engine: 10.2:1 compression 350 c.i.d. with Trick Flow DHC™ 175 cylinder heads (TFS-30210003),
Trick Flow Track Max™ hydraulic roller camshaft (TFS-31402001), 1.6 ratio roller rocker arms,
Trick Flow chromoly pushrods, Edelbrock Victor Jr. intake manifold,
Trick Flow Track Heat ® 750 cfm carburetor (TFS-20750R),
Hooker Super Competition headers with 1 3 ⁄ 4 " primaries, 3" dual exhaust with Flowmaster muffl ers.
DHC 175
Lift Value Intake Flow CFM Exhaust Flow CFM
.100" 65 53
.200" 133 104
.300" 192 136
.400" 233 180
.500" 258 198
.600" 254 207
Tests conducted at 28" of water (pressure).
Bore size: 4.030"; exhaust with 1 3 ⁄ 4 " pipe.
Your Recipe for Small Block Chevy Performance!
New heads are just one component of the horsepower recipe. To make it complete,
you’re going to need some more ingredients.
Track Max ® Camshafts
Give your small block an even bigger power boost with a Track Max camshaft. They
are dyno-proven to produce signifi cant power increases over the entire RPM range,
not just a particular RPM.
StreetBurner ® Intake Manifold
This manifold brings out the best traits of the DHC 175 heads and Track Max cams.
Its dual plane, open air design helps pack more air and fuel into the cylinders to
signifi cantly boost power and torque in the 1,500-6,500 RPM range.
Roller Rocker Arms
Finish off the horsepower recipe with aluminum roller rocker arms. Each set
includes lightweight aluminum CNC-machined rocker arm bodies with premium
needle-bearing fulcrums and roller tips to reduce valvetrain weight and friction.
TrickFlow.com • 1-330-630-1555
1911DUTF
Some parts are not legal for use in California or other states with similar laws/regulations.
Please check your state and/or local laws/regulations.