GEN V Bolt Torque Specs Needed
Thread Starter
Joined: Jul 2005
Posts: 531
Likes: 1
From: Texas, Europe, Iraq & Afghanistan
GEN V Bolt Torque Specs Needed I'm looking for a book or authorized source for GM GEN V bolt torque specs. Be it a URL link, a book, or something else. I'm installing new LT-1 internals, heads and cam. Common automotive publishers have not marketed anything yet.
I appreciate good sources..
I appreciate good sources..
TECH Resident
Joined: Mar 2012
Posts: 859
Likes: 402
From: Texas
I can't attest to all of them, but here's what I can give you (I just reassembled a Gen V a few days ago):
Heads: 59 ft/lbs, 90 degrees, then 60 degrees
Cam sprocket: 48 ft/lbs, 90 degrees
Main caps: First pass : Inner - 15ft/lbs, outer - 15, sides - 22 ft/lbs. 2nd pass: Inner - 110 degrees, outer - 80 degrees, sides 60 degrees
Rods : 15 ft/lbs, 85 degrees
Pretty much any 8mm bolt on these engines will be 22 ft/lbs.
6mm bolts will be 88 in/lbs, with a few exceptions, which will be 106.
Flywheel/flexplate on these engines I always just use 65 ft/lbs with red Loctite, never had a problem.
I hope this helps.
Heads: 59 ft/lbs, 90 degrees, then 60 degrees
Cam sprocket: 48 ft/lbs, 90 degrees
Main caps: First pass : Inner - 15ft/lbs, outer - 15, sides - 22 ft/lbs. 2nd pass: Inner - 110 degrees, outer - 80 degrees, sides 60 degrees
Rods : 15 ft/lbs, 85 degrees
Pretty much any 8mm bolt on these engines will be 22 ft/lbs.
6mm bolts will be 88 in/lbs, with a few exceptions, which will be 106.
Flywheel/flexplate on these engines I always just use 65 ft/lbs with red Loctite, never had a problem.
I hope this helps.
Thread Starter
Joined: Jul 2005
Posts: 531
Likes: 1
From: Texas, Europe, Iraq & Afghanistan
I can't attest to all of them, but here's what I can give you (I just reassembled a Gen V a few days ago):
Heads: 59 ft/lbs, 90 degrees, then 60 degrees
Cam sprocket: 48 ft/lbs, 90 degrees
Main caps: First pass : Inner - 15ft/lbs, outer - 15, sides - 22 ft/lbs. 2nd pass: Inner - 110 degrees, outer - 80 degrees, sides 60 degrees
Rods : 15 ft/lbs, 85 degrees
Pretty much any 8mm bolt on these engines will be 22 ft/lbs.
6mm bolts will be 88 in/lbs, with a few exceptions, which will be 106.
Flywheel/flexplate on these engines I always just use 65 ft/lbs with red Loctite, never had a problem.
I hope this helps.
Heads: 59 ft/lbs, 90 degrees, then 60 degrees
Cam sprocket: 48 ft/lbs, 90 degrees
Main caps: First pass : Inner - 15ft/lbs, outer - 15, sides - 22 ft/lbs. 2nd pass: Inner - 110 degrees, outer - 80 degrees, sides 60 degrees
Rods : 15 ft/lbs, 85 degrees
Pretty much any 8mm bolt on these engines will be 22 ft/lbs.
6mm bolts will be 88 in/lbs, with a few exceptions, which will be 106.
Flywheel/flexplate on these engines I always just use 65 ft/lbs with red Loctite, never had a problem.
I hope this helps.
I just received my ARP head bolts and the written instructions suggest 115 ft lbs for the M12 bolts and 25 ft lbs for the M8 bolts. All this is done in three equal steps.
I presume your guidance is for GM bolts.
