Corporation RPM Buick Cylinder Heads Installation Instructions

Catalog #60039, #60049
Rev. 2/07 - RS/mc Page 1 of 4
©2007 Edelbrock Corporation
Brochure #63-60039
PERFORMER RPM BUICK CYLINDER HEADS
For 1967-1981 400-455 Buick V8 Engines
Catalog #60039, #60049
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 [e-mail]
.
IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation
will void your warranty and may result in poor performance and engine or vehicle damage.
DESCRIPTION: Edelbrock Performer RPM Buick Cylinder Heads are designed for street/strip high performance use on 1967-1981, 400-430-455 C.I.D.
Buick V8 engines (Minimum 4.040” bore) and feature a performance range of 1500-6500 rpm for great throttle response throughout the power band
as well as top-end horsepower. The intake and exhaust port openings are CNC machine “matched” and have been designed for maximum flow velocity
when matched with our Performer Buick 455 or B4B intake manifold and a Performer or Thunder Series Carburetor. The deck, intake flange, exhaust
flange, and valve cover flange are in the stock locations. Spark plug location and angle is the same as stock. The heads are machined to accept the
more commonly available small-block Chevrolet stud mounted adjustable rocker arms. Cylinder head features 2.125” intake and 1.750” exhaust valve
sizes. The combustion chamber is as-cast with a volume of 68cc.
Complete cylinder heads are assembled with the following components: Stainless steel, one-piece, swirl-polished intake and exhaust valves with
under-cut stems for increased flow; Viton oil control seals; Hardened steel spring cups; Edelbrock Sure-Seat Valve Springs #5792, retainers #9644,
and valve locks #9615.
NOTE: Complete cylinder heads are assembled and prepared for installation right out of the box. Bare cylinder heads will have valve
guides and seats installed, but will require final guide sizing and a valve job to match the valves you will be using.
IMPORTANT NOTES: READ BEFORE BEGINNING INSTALLATION!
1969 AND EARLIER BLOCKS (400 & 430 CID): When converting to pushrod oiled rocker arms (which is the case with Performer RPM cylinder
heads), you must block each rocker shaft oil-supply passage on each side of the block prior to cylinder head installation. Holes are located near the
front of the deck for each cylinder bank. Failure to block off these two passages will result in a loss of oil pressure. These hole sizes may vary. Drill
and tap the holes for an appropriate size pipe plug. If the engine is assembled, you may wish to press-fit an appropriately sized aluminum plug.
Otherwise, extreme caution should be used to prevent ANY metal shavings from entering the oil passage. See the diagram below. 1970 and later 455
blocks do not require this procedure. Edelbrock heads manufactured after 3/1/07 account for this early oil passage by providing additional material
and will seal this passage using only the head gasket.
TYPICAL DECK VIEW OF 1969 AND EARLIER BUICK ENGINE BLOCK
Rocker Shaft Oil-Supply Holes on 1969 and
Earlier 400 & 430 CID Engine Blocks.
Drill And Tap For Appropriately Sized Pipe Plugs
DRIVER SIDE PASSENGER SIDE
FRONT
FRONT