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Stillen Lightweight Underdrive Crank Pulley
Part #: 400370
$209.47 For each
Fits On:
07-08 350z (Dual TB Engine), 07-08 FX35 (Dual TB Engine), 07-08 G35 Sedan (Dual TB Engine), 08-11 G37 Coupe (Dual TB Engine), ... See more
Description:
Stillen has long manufactured precision pulleys for supercharger kits. They have used this expertise to produce a new line of high performance crank and accessory pulleys.
Each pulley is machined from 6061 aerospace grade billet aluminum with a bold new design to maximize performance, strength and minimum weight. 304 stainless steel sleeves are used for main seal contact points for durability. Stock timing marks are maintained and keyways are precision broached. All pulleys are CNC turned, milled and balanced based on computer generated designs.
Up to 80% lighter weight than stock steel and up to 10% lighter than other aftermarket pulleys, we’ve seen power gains of up to 10+ HP at the wheels.
OEM Pulley Weight: 4.72lbs
Stillen Pulley Weight: 0.99lbs
Approximate Underdrive: 20%
Stillen has long manufactured precision pulleys for supercharger kits. They have used this expertise to produce a new line of high performance crank and accessory pulleys.
Each pulley is machined from 6061 aerospace grade billet aluminum with a bold new design to maximize performance, strength and minimum weight. 304 stainless steel sleeves are used for main seal contact points for durability. Stock timing marks are maintained and keyways are precision broached. All pulleys are CNC turned, milled and balanced based on computer generated designs.
Up to 80% lighter weight than stock steel and up to 10% lighter than other aftermarket pulleys, we’ve seen power gains of up to 10+ HP at the wheels.
OEM Pulley Weight: 4.72lbs
Stillen Pulley Weight: 0.99lbs
Approximate Underdrive: 20%
In the performance aftermarket community the name Stillen is held in high esteem. Stillen is a performance aftermarket vendor founded by the legendary Nissan racer Steve Millen in 1986. With a heavy focus on the Nissan community, Stillen became known for innovation and performance. However, now Stillen has expanded its lineup to include products for many of the top performance vehicles on the market. Based in Costa Mesa, CA the folks at Stillen believe in the mantra of win on Sunday, sell on Monday and they have extensively tested and proven their products on some of the toughest race tracks all over the world. With superb technical and customer assistance backing up a solid product line, Stillen is a true leader in the performance industry.
Q: How do you install a pulley kit?
A: Pulley kits are installed using hand tools. First remove your factory belts (this is a good time to buy replacements), and then remove the bolts to take your factory pulleys off. Replace them with the lightweight, larger diameter pulleys.
Q: What are pulley kits? Why buy a pulley kit?
A: Pulleys are what drive your vehicles power steering, alternator and air conditioning unit. Belts attach to these pulleys and keep all the units running smoothly. By increasing the diameter of these pulleys, you slow down the power steering, alternator and air conditioning unit, reducing the amount of energy needed to drive them. Horsepower gains can be realized with a simple install package that has no recorded effect on emission levels. Beyond that, pulley kits often come in custom finishes, such as polished or anodized, and give your engine bay a clean custom look.
Q: What exactly is included in a pulley kit?
A: Pulley kits are car specific, and depend of whether you have power steering and/or air conditioning. The basic pulley set includes pulleys for power steering, alternator and air conditioning as needed, as sometimes come pulley belts (see the product description on our website to be sure).
A: Pulley kits are installed using hand tools. First remove your factory belts (this is a good time to buy replacements), and then remove the bolts to take your factory pulleys off. Replace them with the lightweight, larger diameter pulleys.
Q: What are pulley kits? Why buy a pulley kit?
A: Pulleys are what drive your vehicles power steering, alternator and air conditioning unit. Belts attach to these pulleys and keep all the units running smoothly. By increasing the diameter of these pulleys, you slow down the power steering, alternator and air conditioning unit, reducing the amount of energy needed to drive them. Horsepower gains can be realized with a simple install package that has no recorded effect on emission levels. Beyond that, pulley kits often come in custom finishes, such as polished or anodized, and give your engine bay a clean custom look.
Q: What exactly is included in a pulley kit?
A: Pulley kits are car specific, and depend of whether you have power steering and/or air conditioning. The basic pulley set includes pulleys for power steering, alternator and air conditioning as needed, as sometimes come pulley belts (see the product description on our website to be sure).
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