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GSC P-D Toyota 3STGE 21-4N Chrome Polished Intake Valve - 33.6mm Head (STD) - SET 8 - Black Ops Auto Works
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GSC P-D Toyota 3STGE 21-4N Chrome Polished Intake Valve - 33.6mm Head (STD) - SET 8

GSC2072-8
GSC2072-8
Valves
Out of stock
$ 193.81 $ 164.74

SKU: 2072-8

GSC Power-Division 1990-2002 Toyota 3S-GTE 21-4N Chrome Polished Intake Valve - 33.6mm Head (STD) - SET 8

Equip your Toyota 3S-GTE engine with this set of 8 chrome polished intake valves from GSC Power-Division. Designed for Celica GT-Four ST185 ST205 MR2 Turbo W20 and Caldina GT-T ST215 these valves feature 33.6mm standard head diameter for precise fit and enhanced airflow. Built from 21-4N stainless steel they withstand high boost and RPM for consistent power gains.

Key Features

  • 21-4N Material: High-strength stainless steel resists heat fatigue and maintains shape under extreme turbo pressures
  • Chrome Polished Finish: Mirror-like surface reduces stem wear friction and guides oil flow for longer service life
  • 33.60mm Head Diameter: Stock sizing ensures drop-in compatibility with 101.90mm overall length and 5.95mm stem diameter
  • Valve Head Thickness: .425in new .380in installed provides reliable sealing and flow characteristics
  • Set of 8 Intake Valves: Complete engine set matches exhaust valves like GSC 2073-8 for balanced performance builds

Product Notes

  • Inspect valve guides and seats before installation for optimal performance
  • Pair with performance valve springs for high-lift camshaft applications
  • Standard ground shipping with protective packaging

Installation Notes

  • Professional installation recommended.
  • Verify piston-to-valve clearance with clay method during engine assembly
  • Compatible with OEM or aftermarket valve springs and stem seals

This Part Fits

Year Make Model Submodel
1990-1993 Toyota Celica All Trac Turbo ST185 3S-GTE
1994-1999 Toyota Celica GT-Four ST205 3S-GTE
1991-1999 Toyota MR2 Turbo W20 3S-GTE
1997-2002 Toyota Caldina GT-T ST215 3S-GTE

Why Choose GSC Power-Division?

  • Racing-proven designs from drag strip and rally experience
  • Machined in USA with tolerances under .0001in for exact fit
  • Backed by decades of valvetrain innovation for enthusiasts

Frequently Asked Questions

  • Q: Will these valves fit all 3S-GTE engines in Celica and MR2?
    A: Yes they are direct replacements for Gen2 and Gen3 3S-GTE in ST185 ST205 W20 and ST215 models worldwide
  • Q: What makes the 21-4N material and chrome polish different from stock?
    A: 21-4N offers higher tensile strength and heat resistance than OEM Inconel while chrome reduces galling and improves oil retention
  • Q: What warranty applies and any special install needs?
    A: Lifetime warranty against defects when installed by certified shop use OEM-style seals and check clearances

Shipping & Handling

  • Method: Standard ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-lined box 6in x 4in x 2in
  • Weight: 1.0 lb

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GSC Power Division

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