-20%
BLOX BXPT-20301 valve springs set full view
Click to zoom in

BLOX Racing Valve Springs for D-series SOHC VTEC D16Z-Y (1.6L SOHC VTEC)

BLOX Racing
BLOBXPT-20301
BXPT-20301
Valve Springs, Retainers
20+ Units In Stock - Ships Next Business Day
$ 208.00 $ 166.40
$ 166.40

SKU: BXPT-20301

BLOX Racing Valve Springs – D-series SOHC VTEC D16Z-Y (1.6L)

The BLOX Racing D-series SOHC VTEC engines (D16Z-Y 1.6L). Dual-rate design with high-tensile chrome silicon steel delivers increased valve control, higher RPM capability, reduced valve float, and reliable performance under boost or high-rev applications the ultimate valve spring upgrade for any D16 SOHC VTEC build seeking aggressive cam compatibility, engine protection, and maximum power potential.

Key Features

  • Dual-Rate Design – Progressive spring rate for improved valve control at high RPM
  • High-Tensile Chrome Silicon Steel – Premium material resists fatigue and maintains consistent pressure
  • SOHC VTEC Specific – Engineered for D16Z-Y and similar D-series SOHC VTEC heads
  • Reduced Valve Float – Prevents valve bounce at high RPM for safer, more reliable operation
  • Cam Compatibility – Supports aggressive cam profiles and boosted applications
Spec Detail
Part Number BXPT-20301
Brand BLOX Racing
Type Valve Springs
Engine D-series SOHC VTEC (D16Z-Y 1.6L)
Material High-Tensile Chrome Silicon Steel
Design Dual-Rate
Compatibility D16Z-Y and similar D-series SOHC VTEC engines
Country of Origin United States
Warranty BLOX Racing Limited Warranty

Whats Included

  • Set of 16 BLOX Racing valve springs (for 4-cylinder engine)
  • Installation instructions

Product Notes

  • Direct replacement for stock valve springs on D16Z-Y SOHC VTEC engines
  • Essential upgrade for high-RPM or boosted applications to prevent valve float
  • Recommended with upgraded cams, retainers, and valve job for full performance

Installation Notes

  • Requires cylinder head removal and valve spring compressor tools
  • Estimated time: 6–10 hours (during head service)
  • Professional installation highly recommended with proper torque and valve clearance check

This Part Fits

Year Range Make Model Trim / Engine Notes
Various Honda Civic / CRX / Del Sol D16Z-Y SOHC VTEC Valve springs

Why Choose BLOX Racing Valve Springs?

  • #1 choice for high-RPM and boosted D-series engine protection
  • Built & tested in the United States
  • Chosen by Honda tuners for dual-rate design, durability, and aggressive cam compatibility

Frequently Asked Questions

  • Q: Does this fit my D16Z6 engine?
    A: Yes, compatible with D16Z-Y and similar SOHC VTEC D-series engines.
  • Q: Do I need upgraded retainers?
    A: Recommended for high-RPM or boosted setups to maximize performance and safety.
  • Q: Will it support high boost?
    A: Yes, designed for boosted applications with increased valve control and RPM capability.

Shipping & Handling

  • Method: Ground UPS or FedEx
  • Availability: In stock – ships same or next business day
  • Packaging: Official BLOX Racing retail box

Request For Information

Have questions about BLOX Racing Valve Springs for D-series SOHC VTEC D16Z-Y (1.6L SOHC VTEC)? Fill out the form below and we'll get back to you by the next business day.
BLOX Racing

BLOX Racing

BLOX Racing performance parts for Honda, Acura, Subaru, Toyota, Scion, and Mitsubishi platforms are stocked at Black Ops Auto Works. Shop sway bars, engine mounts, intake manifolds, valve covers, fuel rails, and suspension components engineered specifically for the import performance market. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 363 BLOX Racing SKUs across suspension, engine, and drivetrain categories. What This Brand Covers BLOX Racing builds performance suspension and engine components focused exclusively on the import tuning scene. Black Ops Auto Works stocks BLOX Racing products for Honda Civic and Civic Si, Acura Integra, Subaru BRZ, Toyota 86 and Scion FR-S, and Mitsubishi platforms, ranging from bolt-on suspension upgrades to fully machined billet engine components. Import-Focused Engineering BLOX Racing designs every part around the specific chassis and engine ...

View BLOX Racing Products
Engine

Engine

Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...

View Engine Products
Valve Springs, Retainers

Valve Springs, Retainers

Valve springs and retainers for high-RPM and boosted engine builds are stocked at Black Ops Auto Works. Shop dual and single valve springs, beehive-style valve springs, titanium and chromoly retainers, and matched spring-and-retainer kits for HEMI, LS, Coyote, K-series, EJ, and 2JZ platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 406 valve spring and retainer SKUs across spring rate, seat pressure, and material categories. What This Category Covers The Valve Springs, Retainers collection spans upgraded valve springs for higher lift camshafts, beehive-style springs for reduced valvetrain mass, and titanium retainers that shed weight from the reciprocating valvetrain. The catalog is strongest on Supertech valve springs and retainers for import four-cylinder builds, with broad coverage of dual spring kits for domestic V8 platforms running aggressive camshaft profiles. Cat...

View Valve Springs, Retainers Products
Valves & Components

Valves & Components

Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...

View Valves & Components Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×