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AC Autotechnic Block Guard
The AC Autotechnic Block Guard, also known as a sleeve saver, is a special cnc machined aluminum brace that fits into your open deck Honda B Series engine and prevents the cylinder sleeve from flexing during high RPM, nitrous or high boost applications. AC Autotechnic, through their research and de...
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BLOX Block Guard
The BLOX Block Guard is designed to strengthen the open deck design of the Honda B Series and D Series engines. One of the problems is that under extreme pressure such as boost, nitrous, supercharger or other power adders, the cylinder sleeves can flex and bend and eventually cause catastrophic eng...
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