SKU: 75316719699

GSC P-D Chrome Polished Intake Valve - 35mm Head (+1mm) - Evo 1-9 / 90-98 DSM - 4G63T (Set 8)

Sale price$159.30 Regular price$177.00
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Description

GSC P-D Chrome Polished Intake Valve - 35mm Head (+1mm) - Evo 1-9 / 90-98 DSM - 4G63T (Set 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

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.

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SKU: 75316719699

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4.1 ★★★★★
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Colin Conway
Fort Morgan, US
★★★★★ 3
Eh. It was ok. Good for a laugh not for realistic expectations
Format: Hardcover
The book was alright. I appreciated the jokes and style of writing, like a GenZ approach. She’s obviously very funny! However it’s written by a celebrity with massive amounts of money. While she acknowledges her privilege, it felt like a filler line. She goes on and on about out of touch items she had during her pregnancy which really rubbed me the wrong way. I appreciated her chapter on infertility and fertility treatments. Overall I guess I’m glad I bought it and read it. It made me feel a little less lonely. But not something I’d recommend to a friend.
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Reviewed in the United States on May 3, 2023
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Grace Marie
Bozeman, US
★★★★★ 5
A fun read for new moms!
Format: Kindle
I got it as soon as I read “I’m I pregnant or is it just a fart” during my TWW, can’t wait for a part 2.
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Reviewed in the United States on February 5, 2025
C
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Collin M.
Dallas, US
★★★★★ 5
Finally a Place to Store All those Soap Pieces! Self-Lathering, Exfoliating, Good Quality, Love it!
Style: Sport
These soap saver pouches are a really nice upgrade to using regular bar soap and a loofah or washcloth. I love that I can just drop in a full bar, along with all those tiny leftover pieces, and still get great use out of them, while also getting a nice scrub that has a good exfoliating texture without feeling too harsh. It's a medium-like "grit" so just be aware, and both sides feel equally scrubby, and the inner pad material helps the soap foam up easily when you rub it together, making it feel efficient. The three-pack with different colors is convenient for multiple bathrooms or spares, and the little inner loop lets you cinch the opening so smaller soap bits don’t fall out. It does need to be hung to dry since it holds onto moisture, and your soap may go a bit faster because of that constant self-lathering as you use it, but it’s not too bad, and a fair trade-off for how easy and effective it is. All in all, these are well-designed and genuinely useful. Definitely recommended!
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Reviewed in the United States on February 4, 2026
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DaveC
Cuba, US
★★★★★ 5
Exfoliating, durable, helps bars of soap last much longer.
Style: Sport
Am very happy with the convenience and longevity of this product. In addition the exfoliating properties they really do help make my bars of (sometimes quit expensive) soap in the shower last a lot longer - as much as 3 to 5 times as long. I simply hang it up or place on a shower caddy after rinsing the excess suds off and no more soft, soggy bars of leftover soap laying around. Having tried many different versions of these and I find this style is the easiest to get to properly hold onto any odd shaped or larger bars of soap without the soap accidentally popping out in the shower during use. They also seem to outlast many of the other soap savers. They don’t unexpectedly start unraveling after just a few uses like some of the bath poufs tend to do.
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Reviewed in the United States on March 16, 2026
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D Leigh
Louisville, US
★★★★★ 4
Really good, however, a drawstring to keep the soap inside would be amazing
Style: Sport
I bought these sport soap saver bags and I really enjoy them. I exfoliate with loofah all the time so I did not find the grit of this soap saver bag too abrasive. I found it perfect. I washed and lathered all my parts no problem. I had a half gone bar of soap I put inside upon receiving these bags, and the lather was amazing. The soap did move around the smallest little bit because it was smaller. I assume with a brand new bar soap It’s much easier to use. But that happens with all of these same design products. A drawstring at the end of the soap saver bag would make this five stars all day. I would definitely buy these again based on the quality and exfoliation level.
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Reviewed in the United States on September 18, 2025

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