Brodix Small Block Chevy Compatible Head - Manual

ATTENTION:
VALVE SPRING WARNING FOR ALL PACKAGES
On all complete packages, it is very possible that your valve springs are not correct for your
camshaft. All valve springs should be checked for compatibility to your camshaft. Severe wear
of valve train components and severe engine damage could result from failure to do this. Check
spring requirements before heads are installed on the engine. BRODIX requires you to supply the
valve springs for any engine that has a fl at tappet camshaft with over .615 valve lift.
WARRANTY DISCLAIMER:
No warranties of any nature (expressed, implied, fi tness of usage or merchantability) are given on
these products. Seller undertakes no responsibility for any product sold. Additional disclaimers
are within and are binding upon this contract. Due to the intended usage of products offered, all
products are sold on an “as-is” basis, and no warranties of any kind, whether written or oral
are made by BRODIX, Inc., its agents or employees. All implied warranties, including the implied
warranties of merchantability and fi tness are expressly excluded, and the buyer bears the entire
risk as to quality performance and use of these products. BRODIX, Inc. will assume no
responsibility of personal injury, labor or other injury arising out of the usage of high performance
racing parts or products. Any defective part will be handled between the original manufacturer
and the buyer.
BRODIX, Inc. reserves the right to change specifi cations, prices and discontinue parts without
notice. Installation of BRODIX heads may adversely affect the vehicle manufacturer’s warranties,
and may violate State and Federal laws when vehicles so equipped are operated other than strictly
off-highway. BRODIX reserves the right to discontinue any product at its sole discretion and
without any liability with respect to similar products already in the fi eld. Some parts are not legal for
sale or use in California on any pollution controlled motor vehicle.
DUE TO THE POTENTIAL FOR ABUSE AND OVERLOADING WITH A SUPERCHARGER, WE
DO NOT RECOMMEND OUR PRODUCTS FOR SUPERCHARGED APPLICATIONS.
301 Maple Ave. • P.O. Box 1347
Mena, AR • 71953
(479) 394-1075 • Fax: (479) 394-1996
www.brodix.com
© Copyright 2014 Brodix, Inc.
301 Maple Ave. • P.O. Box 1347
Mena, AR • 71953
(479) 394-1075 • Fax: (479) 394-1996
www.brodix.com
Optional Water Circulation Holes for Small Block Engines
BRODIX HEADS DO NOT HAVE STEAM HOLES DRILLED IN THEM; HOWEVER, THE HEAD GASKET CAN BE MODIFIED TO ELIMINATE THE
NEED FOR STEAM HOLES. THIS EXAMPLE SHOWS SIX HOLES IN THE DECK OF A SMALL BLOCK HEAD*. LAY A HEAD GASKET ON THE
DECK, NOTING WHERE THE GASKET COVERS THE HOLES IN THE DECK; PUNCH AT LEAST A 3/8” HOLE IN THE HEAD GASKET. THIS
PROCEDURE CAN BE DONE TO BOTH HEAD GASKETS TO IMPROVE WATER CIRCULATION.
* #4 and #6 hole locations do not apply to the IK ® series heads.
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GENERAL INSTRUCTIONS
FOR SMALL BLOCK CHEVY COMPATIBLE HEADS
WARNING!
PLEASE CHECK THE HEAD THOROUGHLY IN EVERY
POSSIBLE WAY. IF YOU SUSPECT A DEFECT,
CONTACT BRODIX, INC. OR THE DEALER IT WAS
PURCHASED FROM BEFORE ANY WORK HAS BEGUN.
BRODIX WILL NOT BE RESPONSIBLE FOR DEFECTS
AFTER ANY WORK HAS BEEN STARTED.
Inspect the head for damage from shipping, and
check valve stems for nicks by mishandling.
VALVE SPRINGS MAY NOT BE COMPATIBLE WITH
YOUR CAMSHAFT COMBINATION. PLEASE CHECK
BEFORE ENGINE ASSEMBLY. SEVERE DAMAGE
COULD OCCUR.
*Check valve to piston clearance.
*Check piston to cylinder head clearance.
Most bronze valve guide wear problems are created
in the initial preparation and engine warm up. Bronze
guides cannot run dry for any amount of time.
If a valve stem seal is used, the neoprene-tefl on insert
type is desirable. We do not recommend a tight seal.
Use Loc-Tite “271” sealant on rocker stud threads. Torque
to 40-45 ft-lb.
Do not cut spring pockets any larger or deeper than stan-
dard size before consulting with a BRODIX technician.
Fel-Pro or Cometic head gaskets are recommended.
Always check for gasket overlap into chambers. New type
o-ring gaskets may imprint heads. In most cases, they are
acceptable.
Torque head bolts to 70 ft-lb in increments of 20 ft-lb. Use a
drop of 30W motor oil under head of bolt. Make sure head
bolts do not bottom out in block. Sealer should be used on
head bolt threads.
A re-torque after initial warm up is desired. Allow engine to
cool for twelve hours before re-torquing.
Check pushrod clearance with head installed on the
engine block before fi nal assembly.
Apply anti-seize on all bolts and spark plug threads.
Alcohol cars can start with NGK-R 5671 A-9. Gasoline (racing
fuel) cars can start with NGK-R 5671 A-8. This is only a rec-
ommended starting range. You may discover that a colder or
hotter plug will work better with your combination. Gasoline
(pump gas) can start with Champion RN12YC or the equilva-
lent plugs. Plugs must be 14 mm, .750 reach. Put large fl at
side of spark plug gasket next to head.
WARNING! Please be advised that heat soaking aluminum
heads above 250° F can drastically affect the hardness.
Cleaning techniques that utilize heat are not
recommended.
Please feel free to call, write, or email if there are any prob-
lems or questions. We have a complete repair service avail-
able if head damage occurs.
We also stock oversize guides and seats.
PARTS RECOMMENDATIONS INSIDE
Always check valve guide clearance when heads
are purchased bare. When buying the heads
complete, this is performed at BRODIX. A good
cross hatch pattern is desirable for initial oil
retention.
Valve stems should be lubricated before
installation in valve guides. Recommended
valve clearance is .0015 for intake and .00175
for exhaust.
Revised 1/27/14
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