Header Stud Set
The factory exhaust manifold studs have a shoulder in the center that can interfere with proper header tightening. Our 10mm x 1.25 x 48mm long, heat-treated plated header mounting studs are stronger than stock.
Kit Includes:
- (12) Studs
- (12) Mechanical locking nuts
NOTE: Torque to 33 Ft. Lbs. The short side of the stud will go into the head.
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- 1988-1995 3VZ 3.0L Engines
- 1995-2004 5VZ 3.4L Engines
To open a printable PDF version of this instruction CLICK HERE
Kit Includes:
- (12) 48mm Harden Zinc Coated Stud
- (12) M10 x 1.25 Mechanical Locking Flange Nut
Installation:
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1. Remove original studs from head. If the old studs are difficult to remove use a penetrating lubricant and let soak overnight before attempting to remove.
2. The shorter threaded portion of the stud will be installed into the head. The stud will be installed in the head hand tight.
3. The locking flange nut will be torqued to 33 Ft. Lbs. LC Engineering headers and exhaust gaskets DO NOT Require the use of any sealant. If a silicone sealant will be used, make sure it is oxygen sensor safe.
Double Nut Stud Installation And Removal Technique:
Simply take (1) 10mm x 1.25 nut and thread half way on the one of the studs. Take the another 10mm nut, then thread that onto the same stud and make sure the 2 nuts are tightened against one another. Now take your box wrenches and put one on the first nut, and the other on the second nut tightening them against one another. After they are locked together, take the one wrench and place it on the nut closest to the block, and proceed to free the stud from the block. Reverse for installation.
17 Reviews Hide Reviews Show Reviews
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Perfect fit, good length
These fit the 5VZ well and hold on my turbo manifold no problem. I grabbed some copper nuts for them though to avoid having a tough time removing in the future.
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Great
Great
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Brian Steinhoff Jr give 5 stars
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Quality!!!
Very impressed with the quality of this kit! Easy to follow instructions on what to remove and plug off.
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Excellent product
Great product so far. Easy install and looks very clean. Would definitely use them again.
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Header studs are great
These studs are quality made and the nuts are slightly bent in so they will not come off. Would recommend to replace old studs!