Dodge 5.7 HEMI Exhaust Manifold Torque Sequence
5.7 HEMI exhaust-manifold 25 N-m procedure with center-out controller, early/late bolt-count split and side-specific hardware cautions.
For the cited 2013 Ram 1500 and 2011 Dodge Charger 5.7L HEMI factory manifolds, tighten the manifold fasteners in the side-specific sequence to 25 N-m (18 lb-ft); the Ram procedure then calls for a second check at the same 25 N-m. Start at the center and work outward only after matching the exact left/right figure and bolt count. Do not force one numbered drawing onto every HEMI: the cited BD replacement-manifold guide distinguishes early nine-hole from later ten-hole production layouts, and the 2013 Ram manual identifies special stainless fastener locations that differ left to right.
Dodge 5.7L Gen III HEMI exhaust hardware cannot be reduced to one internet torque number. Cast-iron production manifolds, tubular headers, replacement cylinder heads and revised service bolts can share the same engine family while using different flange thickness, washers, coatings and gasket compression. The reliable process begins by identifying the exact vehicle and installed parts, then selecting one complete instruction branch.
The 2013 Ram procedure lists 25 N-m and a repeat pass, but it also identifies stainless fasteners at locations 6 and 9 on the left and 7 and 8 on the right. Those fasteners must return to their documented locations, so the left and right drawings are not casually interchangeable.
The interactive diagram is a clamping-order aid, not permission to merge specifications. Its purpose is to distribute load from the center of a matching flange toward the ends. The documented comparison values on this page are Factory manifold: 25 N-m / 18 lb-ft; 2013 Ram recheck: 25 N-m / 18 lb-ft; Early replacement layout: 9 holes; Later replacement layout: 10 holes. Use only the row supported by the vehicle service information or the instructions supplied with the manifold, header, gasket and cylinder head.
Interactive 5.7 HEMI exhaust tightening controller
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Use this workflow only after opening the exact left/right factory or component figure. HEMI bolt counts and special fastener locations change across applications.
Dodge 5.7 Hemi Exhaust Manifold Torque Diagram
| APPLICATION / ITEM | SPECIFICATION | NOTES |
|---|---|---|
| Factory manifold | 25 N-m / 18 lb-ft | Use side-specific sequence |
| 2013 Ram recheck | 25 N-m / 18 lb-ft | Repeat the same sequence |
| Early replacement layout | 9 holes | Verify exact vehicle and available holes |
| Later replacement layout | 10 holes | Do not reuse early numeric map |
The controller below shows the safe workflow rather than inventing one universal physical number map. Model year, DS/DT truck versus LX/LD car, left/right bank, installed manifold and available cylinder-head holes select the exact diagram.
How to use this specification correctly
- 01
Record the vehicle year, platform, engine code and cylinder-head identification. Photograph the installed Dodge 5.7L Gen III HEMI manifold or header and record its part number before ordering gaskets or bolts.
- 02
Work only on a cold exhaust system. Disconnect the negative battery cable, support the vehicle at approved lifting points and use eye protection; rust, penetrating fluid and broken fasteners create hazards above and below the engine.
- 03
Label oxygen-sensor connectors, heat shields, dipstick brackets, EGR/AIR tubes and plug-wire or coil locations. Support the front pipe or converter so its weight cannot pull on the manifold flange or oxygen-sensor wiring.
- 04
Loosen the head fasteners progressively from the ends toward the center. A stuck or corroded bolt should be treated with the application-appropriate extraction method; forcing it sideways risks breaking it below the cylinder-head surface.
- 05
Remove the manifold and gasket, then protect every exhaust port. Clean the sealing faces without gouging aluminum or cast iron, chase only repairable threads and inspect the flange with a straightedge for warpage, cracks and eroded sealing beads.
- 06
Match the new gasket to the ports, bolt holes and marked orientation. Keep the gasket dry unless the component manufacturer explicitly specifies a coating; generic silicone at an exhaust port can burn, contaminate sensors or prevent even seating.
- 07
Return special studs, stainless bolts, spacers, tie bars, washers and brackets to their documented locations. Hand-start every head fastener several turns and leave the outlet connection loose enough that the manifold can seat without exhaust-system side load.
- 08
Snug the matching flange from its center toward the ends. Follow the interactive order only when the physical fastener count and source branch match; otherwise use the side-specific factory or component diagram supplied for the exact part.
- 09
Make the specified passes with a calibrated low-range torque wrench. Do not add threadlocker, anti-seize or oil unless the selected procedure includes it because thread friction changes bolt stretch at the same wrench reading.
- 10
Align and tighten the outlet joint and supports only after the head flange is seated. Reconnect sensors and shields, start the cold engine, listen for a sharp tick and inspect for escaping gas; perform any heat-cycle recheck only if the selected instructions require it.
Choosing the correct torque branch
The 2013 Ram procedure lists 25 N-m and a repeat pass, but it also identifies stainless fasteners at locations 6 and 9 on the left and 7 and 8 on the right. Those fasteners must return to their documented locations, so the left and right drawings are not casually interchangeable.
The 2011 Charger also uses 25 N-m with a new gasket, while BD's current replacement-manifold guide separates early nine-hole and later ten-hole production. Similar final torque does not erase differences in bolt count, tie bars, access or heat-shield hardware.
How to use the sequence diagram
The numbered map represents tightening order. On a matching six-fastener flange, the physical labels read use the side-specific source diagram from one end to the other, so numerical tightening begins in the center and expands outward. This minimizes bending while the gasket is compressed.
Use the same order for each specified pass. Mark a completed position with a paint pen or worksheet rather than relying on memory, especially when steering, frame or accessory clearance forces several extensions and wrench angles.
Fasteners, gaskets and friction condition
A HEMI exhaust tick can come from a broken bolt, warped manifold, cracked casting or outlet leak. Check every hole with a light and mirror, measure flange flatness and remove broken shanks without damaging the aluminum head before installing new hardware.
Keep stainless bolts, studs, spacers and tie bars in their specified locations. A replacement kit may tell the installer to populate all available holes; that instruction applies to the supplied manifold and vehicle range, not automatically to an older factory casting.
What the cited sources actually establish
Mopar/Ram service information establishes the 25 N-m value and side-specific sequence requirement. BD's component manual supplies the center-out strategy and early/late hole-count warning for its replacement system.
Because the sources show more than one physical layout, a generic numbered row would be false precision. The interactive controller forces identification of bank and bolt count before torque is applied.
Diagnosing an exhaust leak after installation
- A cold-start tick that fades as parts expand commonly points to a head-flange or cracked-manifold leak.
- Black soot at one port identifies escaping gas but does not prove the bolt needs more torque; inspect flatness and the gasket.
- A leak at the outlet flange can sound like a head leak, especially when the front pipe is pulling sideways.
- A broken end bolt often accompanies a warped production manifold; replacing only the bolt can lead to another failure.
- An oxygen-sensor fault after service may come from a disconnected harness, damaged wire or upstream air entering through a leak.
- Do not search for a leak by touching a running manifold or by spraying flammable liquid on hot exhaust parts.
Dodge 5.7L Gen III HEMI exhaust-manifold checklist
- Year, platform, engine code and head material confirmed
- Production manifold versus aftermarket header identified
- Part number and fastener count matched to instructions
- Engine and exhaust system completely cold
- Vehicle and front pipe safely supported
- Sensors, tubes, brackets and shields labeled
- Broken bolts and damaged threads repaired correctly
- Head and flange checked for cracks and warpage
- Correct new gasket fitted in the marked orientation
- Special studs, washers, spacers and tie bars returned to position
- Every fastener hand-started
- Center-out passes completed without mixing torque branches
- Outlet joint aligned before final tightening
- Cold-start leak check completed
- Required heat-cycle recheck recorded
Dodge / Ram / Chrysler Dodge 5.7L Gen III HEMI specifications can change by model year, engine, platform, wheel, and installed component. Confirm the VIN or engine identity, part numbers, fastener condition, and the current manufacturer instructions before service.
Dodge 5.7 HEMI Exhaust Manifold Torque Sequence FAQs
What is the 5.7 HEMI exhaust-manifold torque?+
The cited 2011 Charger and 2013 Ram procedures specify 25 N-m (18 lb-ft) in the application-specific sequence; the Ram procedure repeats the check at 25 N-m.
Does every 5.7 HEMI have the same number of manifold bolts?+
No. The cited replacement-manifold guide distinguishes early nine-hole and later ten-hole layouts, and factory side-specific hardware also varies.
Can I swap the left and right sequence diagrams?+
No. The 2013 Ram procedure lists different special stainless-fastener positions on the left and right banks. Use the exact bank figure.
Should exhaust-manifold bolts be tightened from the center outward?+
That is the documented direction for the center-out branches on this page. Use the exact side-specific figure when the service manual numbers individual positions or the flange has more than the illustrated six fasteners.
Can I use the stock manifold torque on headers?+
Not automatically. Header flange thickness, bolt/washer design, gasket and cylinder-head material can require a different value and recheck schedule. Follow the header manufacturer's instructions.
Should I put anti-seize on the bolts?+
Only when the selected instruction specifies it. Anti-seize changes friction and can increase clamp load at the same torque. GM's cited updated-bolt procedure instead specifies a particular high-temperature high-strength threadlocker.
Why did an end bolt break?+
Thermal movement, a warped manifold, outlet-pipe stress, corrosion, incorrect hardware or uneven tightening can overload an end fastener. Inspect the complete joint rather than replacing the bolt alone.
Do exhaust-manifold bolts need retorquing after a heat cycle?+
Only if the vehicle, head, header or gasket instructions call for it. Some Ford and aftermarket procedures do; other production procedures specify a completed cold two-pass installation without an added hot check.
Technical sources
TorqueSheet favors engine- and component-specific manufacturer instructions over unsourced universal values.
1BD Diesel 2009-2024 5.7L HEMI exhaust-manifold instructionsThe current component instructions specify 25 N-m (18 lb-ft), center-out crisscross tightening and explicitly distinguish early nine-hole from later ten-hole production layouts.↗