Hydra-Rev Can Add More Than 100 Horsepower On The Top
today’s valve train components and the steep acceleration
rates on hydraulic roller cams, it isn’t possible to properly
control the valves and valve train by simply increasing valve spring
pressure. This usually results in collapsed lifters. AFR has created
a solution! The Hydra-Rev applies additional spring pressure to
the lifter body, not the plunger. This vastly improves valvetrain
stability which results in more power at higher RPM without any
loss in low end torque. In testing (see the dyno charts below) Hydra-Rev
increased power at 6500 RPM with Comp Cams’ CS280HR10 by more
than 100 horsepower!
addition, Hydra-Rev eliminates the danger and the potential damage
to components that valve float can cause. The easy to install Hydra-Rev
Kits come complete with all the components you need and requires
no additional machining or modifications when installed on stock
or aftermarket cylinder heads. Hydra-Rev is available now for Chevrolet
V8 small block and V6 engines except the cast iron LT1 Impala and
Vortec truck heads, Pro Action Iron Lightning or Dart Iron Eagle.
If heads are already installed on the engine, a spring installation
tool will be required.
These tests were conducted in AFR’s digitally controlled
dyno facility using a 350 cid Small Block Chevy equipped with AFR
195cc aluminum street cylinder heads, Edelbrock RPM Performer #7101, 600
cfm Holley carburetor, 10 to 1 compression ratio, and the camshafts
shown in the title of each test.
Hydra-Rev Part Numbers
CNC Street Ported Heads
| Small Block Chevy* w/factory lifters
| Small Block Chevy* w/Seal Power or Speed Pro
|Hydra-Rev Kit Installation Tool
* Except the cast iron LT1 Impala,Vortec truck heads, ProAction
Iron Lightning or Dart
**Will not fit Crane or Lunati Lifters