What does a block guard do for my engine?

A block guard adds structural support to the cylinder walls of your engine block. This helps prevent them from flexing or distorting, especially when running higher boost pressures or aggressive engine tunes, improving overall engine reliability.

What engines does this BLOX Racing block guard fit?

This block guard is specifically designed for B16A, B18C1, and B18C5 engines. These are typically found in 1.6L and 1.8L DOHC VTEC applications, commonly in certain Acura Integra and Honda Civic models.

What is involved in installing this block guard?

Installation requires removing the cylinder head from your engine. The block guard is then placed over the top of the cylinder block, fitting between the sleeves, before the cylinder head is reinstalled.

BLOX Racing Block Guard for B16A - B18C1-5 (1.6L - 1.8L DOHC VTEC)

Specifications

Brand: BLOX Racing
Part #: BXPT-10200
UPC: BXPT-10200

BLOX Racing Block Guard for B16A - B18C1-5 (1.6L - 1.8L DOHC VTEC)

Name: BLOX Racing Block Guard for B16A - B18C1-5 (1.6L - 1.8L DOHC VTEC)
Brand: BLOX Racing
Price: 104.00 USD
Availability: InStock

$104.00

On Backorder — Expected to ship by Apr 19, 2026

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Fits 1994-2001 Acura Integra. This BLOX Racing block guard strengthens cylinder walls for high-performance engines.

Key Features

Fits 1994-2001 Acura Integra, 1994-1997 Honda Civic del Sol, and 1999-2000 Honda Civic.
Designed for B16A, B18C1, and B18C5 DOHC VTEC engines (1.6L - 1.8L).
Reinforces cylinder walls to prevent flex and distortion under high stress.
Constructed from solid aluminum for a durable and precise fit.
A popular modification for boosted or aggressively tuned engines.

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Fits these vehicles

Acura Integra 1994-2001
Honda Civic 1999-2000
Honda Civic del Sol 1994-1997

Product Details

This BLOX Racing block guard is designed to reinforce the cylinder walls of your B16A, B18C1, or B18C5 engine, commonly found in 1994-2001 Acura Integras and certain Honda Civics. It's a well-built component that helps prevent cylinder wall flex and distortion, especially under high boost or aggressive tuning. By adding this support, you're making your engine block more robust for demanding applications.

The block guard is made from solid aluminum and fits precisely between the cylinder sleeves. It's a popular choice for tuners looking to increase the reliability of their DOHC VTEC engines. Installation involves removing the cylinder head and placing the guard over the top of the block before reassembling the head. This is a straightforward modification that significantly improves the structural integrity of the engine block, allowing you to push your engine harder with more confidence.