Quote:
Originally Posted by rtcat600man
For everyone who plans to do an exhust header change. The torque spec. on the exhaust bolts is only 15 ft lbs.
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I also just noticed that it was 15lb of tq when I was looking through the GM svc manual, but I went by what was stated in the camaro now mag's BBK LT install at the time which I think was 18 or 19lb ft of tq since I didn't have the svc manual.
Also, for me there was absolutely no way I was going to be able to use the tq wrench on some of those bolts. If you guys know how big the tq wrench is then you should know what I am talking about. I had to do some bolts by feel which worked out pretty good at the end because I still don't have any leaks after 12k on the odo. I installed mine right at 1k.
but you are right.. here is the svc manual.
Callout
Component Name
Preliminary Procedure
Remove the right exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement - Right Side .
1
Nut (Qty: 2)
Warning: Refer to Hot Exhaust System Warning .
Caution: Refer to Fastener Caution .
Tip
• Replace the gasket.
• Clean the cylinder head surface.
• Clean the exhaust manifold surface.
Tighten
48 N·m.(35 lb ft)
2
Bolt (Qty: 7)
Tighten
20 N·m.(15 lb ft)
3
Exhaust Manifold