User Manual

COMP Cams®
3406 Democrat Rd.
Memphis, TN 38118
Phone: [phone] Fax: [phone]
www.compcams.com
Part #178
Revised 7/17/06
#35-1001 Ford 302 HO Hydraulic Roller Lifter Kit
Thank you for choosing COMP Cams® products; we are proud to be your manufacturer of choice.
Please read this instruction sheet carefully before beginning installation, and also take a moment to
review the included limited warranty information.
Before You Start
This kit is designed to allow the installation of
hydraulic roller cams in standard Ford 302 HO V8
engines originally equipped with hydraulic roller
cams. In order to use this kit, your engine must have
two bosses cast into the block (fig. 1) in the lifter
valley area. These bosses may or may not be drilled
and tapped for 1⁄4"-20 bolts. If yours are not drilled
and tapped, then you must be prepared to do so
during this installation process. Once you have
installed your COMP Cams® Magnum Hydraulic
Roller Camshaft per the camshaft installation and
degreeing instructions supplied with the cam, you
are ready to install the hydraulic roller lifters.
Installation Instructions:
1. Installing the lifters - Slide the lifters into the lifter bores just like a regular lifter, and then rotate
them until the flat surfaces on the sides of each lifter all face inward toward the lifter valley. Each lifter
has two flats, one on each side. It does not matter which flat faces the valley and which faces the
cylinders. You may encounter some difficulty in trying to install the end lifters in each bank due to
interference from an ear on each end of the head gaskets. Gently bend this ear out of the way, install
the lifters, and bend the ear back into place. The purpose of this ear is to help locate the intake gasket
during manifold assembly, so do not bend or remove it permanently.
2. Installing the lifter guides - The purpose of the
guides is to prevent the lifters from rotating,
therefore keeping the lifter wheels rolling over the cam
lobes as opposed to sliding. With all the flats on the
lifter in line, install one of the eight lifter guides over
each pair of lifters in the valley. They should be
installed with the word “UP” that is stamped into each
guide facing up. It does not matter whether the “UP”
stamp is toward the front or the rear of the block.
The forks on each end of the guides should nest over
the top of the flats on either side of each lifter. Also,
INSTRUCTIONS