GSC P-D Chrome Polished Intake Valve 37mm Head (+1mm) WRX / STI Subaru – Import Image Racing
Skip to content
GSC P-D Chrome Polished Intake Valve 37mm Head (+1mm) WRX / STI Subaru EJ Series 2002-2021 (Set 8)

GSC P-D Chrome Polished Intake Valve 37mm Head (+1mm) WRX / STI Subaru EJ Series 2002-2021 (Set 8)

Rated 5.0 out of 5
Based on 1 review
SKU: gsc2014-8
Availability: 11 In Stock
Product Type: Intake and Exhaust Valves
$137.05
$173.39
$137.05
Save $36.34

BuildBUX Rewards

Great news – on this purchase, you'll enjoy a BuildBUX bonus of $1.37.

Regular Price: $173.39 - Instant discount: $36.34 = $137.05


Subtotal: $137.05
🕒 Order within hours minutes
📦

Fasktrak

$7.99

Estimated: ,

🚚

Express

Starts at $8.99

Loading...

Fastest

Starts at $10.99

Loading...

Part #: 2014-8

When designing these valves, GSC used advanced 3D design and simulation programs to create a stronger and higher flowing valve head design. Prototypes were used in the specific applications to make sure that they have the highest flowing valve head that is available on the market today. The materials they have used have less valve distortion at the face than any of the tested designs which allow for better sealing under extreme conditions to promote more consistent performance through the life of the valve.

Here are more key features:

Valve Features:

    • Swirl polished heads for smoother airflow over the valve
    • Back cut to reduce valve weight for higher rpm, higher boost pressure and allow for more aggressive cam profiles without increasing valve spring seat pressures.
    • Valve stems are micro-polished to allow for less oil retention on the stem which creates less drag on the stem to guide for a smoother motion.
    • Fully nitrated ( this includes the 45 which increases valve life and makes a better seal at the valve seat for improved cylinder pressure) also reduces carbon buildup on the backside of the valve.
    • Intake valves are a modified 21-4n stainless and Exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity.
    • Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
    • Valve tip lengths. They have taken extra time to adjust tip heights on the applications to require less tipping of the valve to maintain proper tip height for proper valvetrain geometry and to cut down on install times when setting valve lash.

They have also adjusted the Keeper grove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from their spring and retainer kits.

Valves will work with an OEM keeper/lock or when available their upgraded keeper/lock. It's not mandatory but it is suggested that any valve lock not be reused on performance applications due to material grooving.

Here are more key features:

Valve Features:

    • Swirl polished heads for smoother airflow over the valve
    • Back cut to reduce valve weight for higher rpm, higher boost pressure and allow for more aggressive cam profiles without increasing valve spring seat pressures.
    • Valve stems are micro-polished to allow for less oil retention on the stem which creates less drag on the stem to guide for a smoother motion.
    • Fully nitrated ( this includes the 45 which increases valve life and makes a better seal at the valve seat for improved cylinder pressure) also reduces carbon buildup on the backside of the valve.
    • Intake valves are a modified 21-4n stainless and Exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity.
    • Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear
    • Valve tip lengths. They have taken extra time to adjust tip heights on the applications to require less tipping of the valve to maintain proper tip height for proper valvetrain geometry and to cut down on install times when setting valve lash.

They have also adjusted the Keeper grove to properly balance intake and exhaust spring pressures to reduce the use of valve spring shims and maximize performance from their spring and retainer kits.

Valves will work with an OEM keeper/lock or when available their upgraded keeper/lock. It's not mandatory but it is suggested that any valve lock not be reused on performance applications due to material grooving.

Reasons to get BuildBUX GOLD?
We could name a few

BuildBUX Gold: $4.98/mo

More Cashback

Get more cashback! Items are changing weekly. Anywhere from 1% to 20% Back in BuildBUX when you make purchases. Products

Free Money

Every month when you are charged your $4.98 subscription fee, you will get $15 in BuildBUX

Easy To Cancel

Cancel anytime, month to month terms.

Get Started

BuildBUX: Free

Cashback

Get 1% back on every purchase on eligible brands.

Free

Completely free to use. Just place an order!

Get Started
average rating 5.0 out of 5
Based on 1 review
  • 5 Stars
    1 Review
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
Customer photos and videos
Review posted
Reviewed by Brandon L.
Verified Buyer
Rated 5 out of 5

The best in the business!

If you’re looking for TOP NOTCH components for your heads, look no further. GSC Power Division makes superior products that you can trust. When you’re looking to make serious power in a Subaru, +1 valves are the way to go, especially with the addition of a bigger cam. By adding GSC’s valve stem guides and viton seals, you also get better airflow and a sure fire seal. If you’ve got your engine out, or are building, just do it.

Loading...
I recommend this product
Was this helpful?

Thanks for subscribing!

This email has been registered!

Shop the look

Choose Options

Edit Option
is added to your shopping cart.

Choose Options

this is just a warning
Login