Torque spec for headers?
07-08-2002 | 10:44 AM
#1
Torque spec for headers? Just want to make sure I'm not gonna screw anything up. What should I torque the header bolts down to. Also, any tips for installing Macs with ORY?
07-08-2002 | 10:55 AM
#2
Joined: Nov 2001
Posts: 32,726
Likes: 1,836
From: Schiller Park, IL Member: #317
Re: Torque spec for headers? I can’t remember the sequence, but I know it was 11ft-lbs on the first pass and 18ft-lbs on the second (and final) pass.
07-08-2002 | 12:26 PM
#3
TECH Enthusiast
Joined: Nov 2001
Posts: 712
Likes: 1
From: Dallas,Texas
Re: Torque spec for headers? here is the detail
http://ls1info.com/article.php?sid=117
a.Tighten the exhaust manifold bolts a first pass to 15 N·m (11 lb ft).
Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from
side-to-side, and work toward the outside bolts.
b.Tighten the exhaust manifold bolts a final pass to 25 N·m (18 lb ft). Tighten
the exhaust manifold bolts beginning with the center two bolts. Alternate from
side-to-side, and work toward the outside bolts.
http://ls1info.com/article.php?sid=117
a.Tighten the exhaust manifold bolts a first pass to 15 N·m (11 lb ft).
Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from
side-to-side, and work toward the outside bolts.
b.Tighten the exhaust manifold bolts a final pass to 25 N·m (18 lb ft). Tighten
the exhaust manifold bolts beginning with the center two bolts. Alternate from
side-to-side, and work toward the outside bolts.
