PERFORMER RPM 351 -C CYLINDER HEAD

For 351 c.i.d. Ford “Cleveland” and 351/400 c.i.d. “M” Engines
Catalog #61609 & #61629

INSTALLATION INSTRUCTIONS
PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and
procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this
installation, it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical
Hotline at: 1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at edelbrock@edelbrock.com..
IMPORTANT NOTE: Proper installation is the responsibility of the installer.
Improper installation may result in poor performance and engine or vehicle damage.
PLEASE complete and mail your warranty card. Be sure to write the model number of this product in the "Part #____" space. THANK YOU.

DESCRIPTION: Designed for Ford 351-C, 351-M, and 400-M engines, HYBRID APPLICATIONS: Cleveland heads are sometimes used in
these street high-performance heads provide great “out-of-the-box”, hybrid applications such as a “Clevor” (351 Windsor block, 400-M
performance for your Ford musclecar or streetrod. Performer RPM crankshaft, and Cleveland cylinder heads), or Boss-302 “clone” (302
351-C heads feature CNC profiled 190cc (intake) and 90cc (exhaust) Block with Cleveland cylinder heads). In these applications, the
port exits for superior flow and efficient 60cc “Compact Charge” cylinder heads must be drilled to provide a coolant crossover passage
combustion chambers. An optimized spark plug location provides for use with certain aftermarket intake manifolds designed specifically
improved header clearance. Hardened valve seats are compatible with for such hybrid engines. Guide holes are provided for this purpose
any fuel. NOTE: These heads may be used in “Hybrid” applications (See Figure 1) . Refer to the manufacturer of your custom intake
such as building a “Clevor” or mock Boss 302 engine. See “Hybrid manifold for the appropriate location (usually the hole that will be at
Applications” section for details. the front of the block when the heads are installed) and diameter and
The complete cylinder heads are assembled with the following: drill accordingly, using the guide holes to align your drill.

❑ Stainless steel, one-piece, swirl-polished intake (2.05”) and

exhaust (1.60”) valves with under-cut stems for increased flow
❑ 2-ring positive oil control seals
❑ Edelbrock Sure-Seat valve springs #5792
❑ Retainers #9734
❑ Valve keepers #9612
❑ Valve spring seats #5771 Drill Guide Holes
❑ Hardened Guide Plates #9672
NOTE: Complete cylinder heads are assembled and prepared for
installation right out of the box. Bare cylinder heads will have Figure 1 - Intake Flange Water Crossover Drill Locations
valve guides and seats installed, but will require final sizing for Cleveland/Windsor Hybrid Applications
and a valve job to match the valves you will be using. Additionally, the 3/4” threaded coolant holes in the deck surface of the
block must be plugged for these hybrid applications. Install the
IMPORTANT NOTES, READ BEFORE BEGINNING INSTALLATION!:
supplied 3/4” aluminum plugs using liquid Teflon thread sealer on the
For a successful installation, the Edelbrock Performer RPM Cylinder
threads.
Heads require some components other than original equipment parts.
To complete your installation, you will need the following items: NOTE: After installing the plugs, they must be milled flush with the
❑ Head gaskets; Fel-Pro #1013 (see instructions below) deck of the cylinder head. This may require milling a small amount off
❑ Intake manifold gaskets; Edelbrock #7216. of the entire deck surface. This operation should ONLY be performed
❑ Exhaust gaskets; Fel-Pro #1430 or equivalent by a professional engine machine shop.
❑ Cylinder head bolts or studs with hardened steel washers. CHECKING PISTON-TO-VALVE, PISTON-TO-BORE AND PISTON-TO-
(If mounting on 302 block, you must also use Edelbrock head bolt HEAD CLEARANCES: Prior to installation, it is highly recommended
bushings with integral washers, #9680) that valve-to-piston clearances are checked and corrected to
❑ Heads are machined for adjustable rocker arm assembly minimum specs, if necessary. These cylinder heads have larger-than-
❑ Hardened steel pushrods (For 351M/400, use Edelbrock #9633) stock valve sizes and may not work with the valve pockets in stock
❑ 14mm x 3/4” reach gasketed spark plugs; Champion RC-12YC or pistons, especially if a high lift cam is used. The use of aftermarket
equivalent pistons and/or custom machining of your pistons may be required.

Catalog #61609, #61629 ©2005 Edelbrock Corporation

Rev. 10/05 - RS/mc Page 1 of 2 Brochure #63-0352
Actual valve-to-piston clearance should be specified by your camshaft INSTALLATION: Installation is the same as for original equipment
manufacturer. Valve-to-bore clearance should also be checked, and cylinder heads. Consult service manual for specific procedures, if
the top of the bore notched for clearance, if necessary. necessary. Be sure that the surface of the block and the surface of the
head are thoroughly cleaned to remove any oily film before installation.
ACCESSORIES: Although Edelbrock Cylinder Heads will accept most Use alcohol or lacquer thinner on a lint-free rag to clean. Apply oil or
OEM components (valve covers, intake manifold, etc.), we highly suitable thread lubricant to head bolt threads and the underside of bolt
recommend that premium quality hardware be used with your new heads and washers. Torque 1/2” bolts to 100-110 ft./lbs (1/2” bolts)
heads. in four steps (30, 60, 90, 100-110) following the factory tightening
sequence (See Figure 2). See intake manifold instructions for
HEAD BOLTS OR STUDS: High quality head studs or head bolts with installation of the intake manifold.
hardened washers must be used to prevent galling of the aluminum
bolt bosses. Edelbrock head bolt kit #8560 includes all bolts which NOTES:
must be used with these cylinder heads (Also use Edelbrock Head Bolt BOSS 302 CLONE ENGINES - Use Edelbrock Head Bolt Bushings with
Bushings #9680 in place of washers on if installing heads on a 302 Integral Washers #9680 in place of washers supplied with your head
block). Stock head bolts may be used with hardened washers. bolt kit. Torque 7/16” bolts to 65-70 ft./lbs. in four steps (30, 40, 50,
65-70) following the factory tightening sequence (See Figure 2).
ROCKER ARMS AND VALVE TRAIN: These cylinder heads are ALL ENGINES - A re-torque is recommended after initial start-up and
designed to use the preferred Boss 302 7/16” stud mounted rocker cool-down (allow 2-3 hours for adequate cooling).
arms. Although stock Boss 302 rocker arms may be used (if new lock
nuts are used), we highly recommend using adjustable aftermarket SPECIFICATIONS:
roller rocker arms such as Crane Cams, Comp Cams, Crower or any Head Bolt Torque: 7/16” Bolts: 65-70 ft./lbs.
equivalent. Long slot, roller tip rockers may also be used. 1/2” Bolts: 100-110 ft./lbs.
(Applied gradually in 4 steps)
VALVE COVERS: Edelbrock Performer RPM cylinder heads will accept Rocker Stud Torque: 50 ft./lbs.
stock Cleveland valve covers. They also will accept Edelbrock valve Combustion Chamber Volume: 60 cc
covers #4461. Deck Thickness: 5/8”
INTAKE MANIFOLD: Although stock intake manifolds will fit, Valve Seats: Hardened ductile iron, non-
Edelbrock Performer RPM Cylinder Heads are matched in size and interlocking, compatible with
operating range with Edelbrock RPM RPM Air-Gap manifold #7564. any fuel
Edelbrock intake manifold gasket #7216 is recommended. Valve Size: Intake - 2.05”, Exhaust - 1.60”
Valve Spring Diameter: 1.55”
Valve Spring Installed Height: 1.900”
NOTE: To ensure maximum performance and a proper seal, Valve Spring Seat Pressure: 115 lbs.
Edelbrock gaskets which are specifically designed and Max. Valve Lift: .600”
manufactured for use with Edelbrock parts must be used.

EXHAUST HEADERS: For optimum performance, exhaust headers

and a low restriction exhaust system are highly recommended for use
with Edelbrock Performer RPM Cylinder Heads. Exhaust ports are
CNC-profiled to match Fel-Pro #1430 exhaust gaskets which are
recommended for this application.

SPARK PLUGS: Use 14mm x 3/4” reach gasketed spark plugs. Heat
range may vary by application, but we recommend Champion RC-
12YC (or equivalent) for most applications. Use anti-seize on the
(EXHAUST PORT SIDE)
plug threads to prevent galling in the cylinder head, and torque
to 10 ft./lbs. Do not over-tighten sparkplugs! If short reach
Figure 2 - Cylinder Head Bolt Torque Sequence
plug is used, poor performance and possible engine damage
Torque Bolts in 4 Steps Following Sequence Above
may occur.

Edelbrock Corporation • 2700 California St. • Torrance, CA 90503

Tech Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com

Catalog #61609, #61629 ©2005 Edelbrock Corporation

Rev. 10/05 - RS/mc Page 2 of 2 Brochure #63-0352