FOR BUICK V8, 348-409, FORD Y-BLOCK, & EARLY HEMI
FOR STOCK EXHAUST: FORD TRUCK Y-BLOCK (USE 1" FOR T-BIRD) AND EARLY HEMI
ALL HEADER KITS (EXCEPT STOCK STYLE HEX KITS) CONTAIN HIGH STRENGTH BOLTS
-USE 3/4 LENGTH BOLTS FOR HEADER FLANGES 1/4" THICK OR LESS
-USE 1" LENGTH BOLTS FOR HEADER FLANGES OVER 1/4" THICK
-1 1/4" AND 1 1/2" LENGTH BOLT KITS ARE FOR CAST IRON MANIFOLDS, CHECK YOUR ORIGINAL BOLT LENGTHS BEFORE ORDERING, SOME EXHAUST MANIFOLDS USED SEVERAL BOLT LENGTHS.
SIX POINT - HIGH STRENGTH
TWELVE POINT HIGH STRENGTH
HEX HEAD - HAS STOCK APPEARANCE
STUDS & HEX NUTS
PLEASE ALLOW 10-15 BUSINESS DAYS FOR SHIPPING