SKU: BXPT-10202
BLOX Racing Block Guard for H22A 2.2L DOHC VTEC 93-01 Honda Prelude
BLOX Racing block guards reinforce upper cylinder walls in open-deck H-series Honda engines like the H22A 2.2L DOHC VTEC. This billet part fits 93-01 Prelude models including Si VTEC H22A1 and Base/Type SH H22A4 plus JDM variants. It directs maximum coolant to the head to prevent gasket failure and sleeve cracks during high-boost applications.
Key Features
- CNC-Machined AL6061-T6 Aluminum: Provides durable strength for open-deck blocks under forced induction stress
- Enhanced Cylinder Wall Support: Prevents cracking and distortion in high-performance H22A engines
- Optimized Coolant Flow: Large passages reduce hot spots and head gasket risks
- Billet Construction: Precision machined for exact fit on H-series DOHC VTEC blocks
- Made in USA: High-quality manufacturing ensures reliability for racing builds
Product Notes
- Essential for turbo or supercharged H22A engines exceeding stock power levels
- Inspect block deck surface before installation for flatness
- Ships in protective packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Remove head and clean block deck thoroughly prior to fitting
- Uses stock head bolts. torque to manufacturer specs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1996 | Honda | Prelude | Si VTEC (H22A1) |
| 1997-2001 | Honda | Prelude | Base VTEC (H22A4) |
| 1997-2001 | Honda | Prelude | Type SH (H22A4) |
| 1993-1996 | Honda | Prelude | JDM H22A |
| 1997-2001 | Honda | Prelude | JDM Type S H22A |
| – | – | JDM H23A VTEC | – |
| – | – | JDM H22A/A7 Euro Accord Type-R | – |
| – | – | JDM F20B VTEC Accord SiR | – |
Why Choose BLOX Racing?
- Proven in drag and circuit racing with H-series engines
- Focus on high-boost durability and precise engineering
- Direct-fit design from dedicated Honda performance specialists
Frequently Asked Questions
- Q: Does this fit 97-01 Prelude Type SH H22A4?
A: Yes it bolts directly to H22A4 blocks in USDM 97-01 Prelude Base and Type SH models - Q: What material is used for the block guard?
A: CNC machined from aircraft-grade AL6061-T6 aluminum for strength and heat dissipation - Q: Is installation difficult for boosted setups?
A: Straightforward with head off. professional tuning advised post-install for boost levels
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box 7in x 5in x 2in
- Weight: 1.2 lbs





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