Tariff drama? Not here. Every order ships with zero surprise fees.
Tariff drama? Not here. Every order ships with zero surprise fees.


SKU: SKU: SPTBG-B20
Supertech block guards are designed to reinforce open deck cylinder blocks, reducing cylinder wall flex and distortion under high boost and high horsepower conditions. By supporting the top of the cylinder bores, a block guard helps maintain head gasket sealing and ring seal in heavily modified engines.
Machined to precise tolerances for a proper fit, Supertech block guards are an affordable insurance policy for boosted open deck engine builds.
Recommended for turbocharged and supercharged open deck engine builds targeting elevated cylinder pressures. Installation should be performed during block machining by a qualified machine shop.
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