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The CP Pistons Bullet Race piston set for Ford Big Block 521 applications is supplied as a set of eight pistons sized for Kaase P51 heads. Each piston matches a 4.390" bore and is supplied as a complete set of eight for Big Block Ford 521displacement builds. This Bullet Race set provides the piston dimensions called out for those 521ci Ford assemblies.
CP Piston BRS Ford Big Block 521 Head: Kaase P51 Bore : 4.390 Set Of 8 (MTO Non-Cancel)
