IT IS CRITICAL THAT ALL BOLTS BE RE-TIGHTENED HOT AFTER ABOUT 20
MINUTES OF OPERATION TO PREVENT GASKET FAILURE.
NOTE: HEADERS ARE NOT MEANT TO SERVE AS “EXHAUST SYSTEM SUPPORT
HANGERS”. ADDITIONAL HANGERS MAY NEED TO BE ADDED AT THE TIME OF THE
INSTALLATION OF THE HEADERS SO THAT THE EXHAUST SYSTEM SUPPORTS
ITSELF WHEN THE COLLECTOR BOKTS ARE REMOVED. HEADERS THAT HAVE
“SAGGED” DUE TO THE LACK OF SUFFICIENT EXHAUST SYSTEM SUPPORT WILL
NOT BE REPLACED UNDER WARRANTY.
NOTE:
HEADER BOLTS SHOULD BE INSPECTED FOR TIGHTNESS FROM TIME TO
TIME TO ENSURE OPTIMUM GASKET LIFE. THE BOLTS WILL STRETCH SOME AT
FIRST DUE TO THE EXHAUST HEAT; SO, THEY’LL LOOSEN WITHOUT TURNING
UNTIL THEY “TAKE A SET”. (BOLTS HARD ENOUGH NOT TO STRETCH WOULD
BREAK!) WE’VE EXPERIMENTED WITH THE VARIOUS “LOCKING DEVICES” ON THE
MARKET, WHICH PREVENT BOLTS FROM TURNING. THEY DON’T WORK ON HEADER
BOLTS, AND THEY GREATLY COMPLICATE THE PROCESS OF RE-TIGHTENING THE
BOLTS WHEN IT’S NECESSARY.
WHAT DOES WORK IS THIS:
GO OVER THE BOLTS AGAIN AFTER THE FIRST DAY OF DRIVING (OR ABOUT 100
MILES-WHICHEVER COMES FIRST) THEN AFTER THE FIRST WEEK, AFTER THE
FIRST MONTH, AND THEN EVERY 6 MONTHS. OUR EXCLUSIVE GASKETS ARE
SPECIALLY MADE SO THAT THE CYLINDER HEAD SHOULD BEGIN TO MELT BEFORE
THE GASKETS CAN BURN UP. ABOUT THE ONLY WAY TO KILL THE GASKETS IS TO
LET THE HEADERS GET LOOSE AND THEN KEEP DRIVING WITH A LEAK.
DUE TO VARYING CONDITIONS BETWEEN GEOGRAPHICAL LOCATIONS AND USAGE,
WE STRONGLY RECOMMEND HAVING THE ENGINE RE-TUNE AT A REPUTABLE TUNE-
UP SHOP AFTER THE INSTALLATION OF THE HEADERS. DOING SO WILL ENSURE
THAT YOU GET THE MAXIMUM BENEFIT FROM THE INSTALLATION OF THE
HEADERS.
GIBSON PERFORMANCE STRIVES TO DELIVER THE HIGHEST QUALITY MATERIALS,
WORKMANSHIP, AND SERVICE. PLEASE DO NOT HESITATE TO CALL OUR
TECHNICAL LINE IF YOU HAVE A QUESTION OR EXPERIENCE A PROBLEM.
WE TRULY WISH TO HAVE ONLY SATISFIED CUSTOMERS
