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390 Series high compression gasket kit. This gasket kit will raise the compression ration of the 390 motors by 1 point and correct the factories poor squish value. This will safely pull every ounce of performance out of the 390. Kit Includes Base and Head Gasket New head bolts Circlip Appropriate spark plug for the compression bump Exhaust gasket
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$109.99
