Eaxaust manifold bolt size and type needed
Thread Starter
Burning Brakes
Joined: Jun 1999
Posts: 751
Likes: 0
From: Chandler AZ
St. Jude Contributor
Eaxaust manifold bolt size and type needed
The bolt on my stock exaust manafold is gone (must have been loose). Its for the driver side, first bolt farthest away from the driver (forward). I need to replace the bolt but don't know what the size or grade should be. Also where to get one. Oh and what torque should it be?
Thanks in advance,
71LS5
Thanks in advance,
71LS5
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
you need Grade 5 3/8" coarse thread, don't know off hand the length, but you can remove one of the other bolts and measure or measure the length of the manifold's bolt hole and add 1/2"-3/4".
Pro
Joined: Jun 2005
Posts: 540
Likes: 4
St. Jude Donor '09, '24
Paragon will have the original style bolt you need with the correct markings on top if your want that. Usually sold in sets of complete bolts and studs. Sears hardware should have the bolt you need if you aren't worried about the originalnality of the bolts. Should be a 3/8 X 16 thread at whatever length you need. Believe the tourque range between 20 and 30 lbs, houstonvett
