SKU: 30577792256

GSC Power-Division high pressure CONICAL Spring set for the Subaru EJ Engines (gsc5073)

Sale price$233.04 Regular price$258.93
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

GSC Power-Division high pressure CONICAL Spring set for the Subaru EJ Engines (gsc5073)The GSC Power Division High Pressure Conical Valve Spring with Ti Retainer for Subaru EJ platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats. High RPM and High Boost levels are not a problem on these kits. True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional

The GSC Power-Division High Pressure Conical Valve Spring with Ti Retainer for Subaru EJ platforms includes 16 titanium retainers, 16 conical valve springs, and 16 chromoly valve spring seats. High RPM and High Boost levels are not a problem on these kits. True conical valve springs are not a new concept and are industry proven to provide several key advantages over traditional spring designs. A major advantage of conical springs vs. traditional cylindrical or beehive springs is the damping and removal of valvetrain harmonics. Of the three designs, conical springs are the front runners in valvetrain harmonic stability. Utilizing a varying coil diameter as well as coil spacing, a conical spring acts as a natural harmonic damper in the transfer of valvetrain shock. This translates to less stress, less wear, and a longer life of the included components. This level of protection is needed in today s engines being pushed to their physical and mechanical limits by aftermarket modifications. Every GSC conical spring offers a superfinished surface treatment to go along with the patented, multi-step heat treatment process. The finished product is an extremely reliable, high-performance spring allowing the users to push higher RPMs, use more aggressive cam profiles, and turn up higher boost pressures.

Features:

  • Vastly improved harmonic stability with inherent self-damping design
  • Smaller design = weight reduction throughout the entire valvetrain system
  • Applications for high RPM and boost pressure with the ability to run more aggressive camshafts
  • State of the art manufacturing and engineering production processes
Shipping Notes
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Exchange/Return Notes
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SKU: 30577792256

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Don G
Phoenix, US
★★★★★ 4
Entertaining, informative, without being overwhelming.
Format: Hardcover, Format: Hardcover
Got it for, basically, half-off standard retail. At that price, it's a fine addition to the WWII library. Some interesting information displayed in a mostly entertaining way. I get that battle maps are always a challenge (maps are static - battles are dynamic). This does a fairly adequate job - better than most battle maps - though far from groundbreaking. item arrived well packed - no issues with binding (as some others seem to report). Though the book overall is a bit "warped" and several of the maps are mis-printed or mis-cut as to make them unusable. 3 bad out of 300 - not horrible - again at the price I paid. If the subject interest you - I'd suggest getting - but not a "must have".
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Reviewed in the United States on July 17, 2025
S
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starbuck
Massapequa, US
★★★★★ 5
So neat
Format: Hardcover
The pages are high quality and it's a fascinating read. It's a well put together book. It's also a great gift for history buffs. Overall quality is excellent.
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Reviewed in the United States on March 1, 2026
M
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MW
Bozeman, US
★★★★★ 5
For the history buff or student - this is worth the purchase
Format: Hardcover
Detailed, individual maps and history on the battles of World War II. It isn’t too overwhelming for the student and is an enjoyable read for the history buff. Hardback so it will ensure lots of reading and reviews, durable pages too (not those thin, flimsy, easily tearable pages!) - this book will likely stand the test of our schooling years and beyond.
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Reviewed in the United States on August 27, 2025
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JKM
Lowell, US
★★★★★ 5
Grandson gift
Format: Hardcover
This was purchased for my grandson for Christmas and he was thrilled with it. He collects all things pertaining to WWll. Even his friends enjoyed it. Pictures clear and easy to read.
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Reviewed in the United States on January 23, 2026
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Southern gal
Birmingham, US
★★★★★ 5
Great summary of space exploration
Format: Hardcover
This was a gift for a family member & far as I know they were very impressed with the knowledge available in this book.
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Reviewed in the United States on December 14, 2025

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