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Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind (Part Number: )
Cosworth Camshafts S2 Grind
Subaru STI 2004-2007
Write a Review | 2 Q&As
Part # KK3766
$1,250.00

In stock! Ships same day

Features & Product Details

Cosworth has been engineering camshafts for nearly 50 years. That coupled with years of innovative multi valve cylinder head design ensures their camshaft designs are the most efficient in providing maximum usable power across the widest power band. Each cam is ground from a new chill cast billet and finished using the same procedures we use in their extreme level race engines. Cosworth camshafts are the perfect complement to the CNC Ported Big Valve Cylinder heads. Cosworth Subaru EJ25 cams are profiled to increase boost response thereby increasing engine torque and power and are fully compatible with the Subaru STI AVCS.

Specs:
Valve Clearance: Intake .008" Exhaust .010"
Peak Cam Lift: Intake 10.9mm Exhaust 10.28mm
Rocker Ratio 1
Peak Valve Lift: Intake 10.71mm Exhaust 10.03mm
Centerline: Intake 107 deg Exhaust 113 deg
Open: Intake 29.5 BTDC Exhaust 70.9 BBDC
Close: Intake 69.3 ABDC Exhaust 23.4 ATDC
Duration: Intake 278 deg Exhaust 274 deg

Notice: Performance camshafts may require improved valve train for proper operation.
Always check for spring coil bind. Cam followers should be in good condition or replaced
with new parts. Follow proper break-in procedure for maximum cam life.

Specifications

Brand: Cosworth
Cam Exhaust Duration: 274
Cam Exhaust Lift: 10.0mm
Cam Intake Duration: 278
Cam Intake Lift: 10.7mm
Location: Intake and Exhaust
Machining Required: No
QTY: 4
Springs Required: Recommended
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

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Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

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The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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QUESTIONS & ANSWERS

  • Q: Supporting Mods  bladesti6 years ago

    Other than a tune what other mods will i need to install these?
  • Q: duration  Attia1996 years ago

    What is the duration spec measured from .050 for these cams.