Billet Performance Products Toyota 1JZ / 2JZ Billet Main Caps

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Billet Performance Products billet main caps are a bottom-end strengthening upgrade for Toyota 1JZ and 2JZ engines, built for serious engine rebuilds where the factory caps are no longer the right choice. These caps are machined to install into the block before final line boring or honing, making them suited to high-output street, drag, drift and circuit JZ builds. They make the most sense when you are already investing in machine work, rotating assembly parts and other engine parts for a proper performance build. Features MPN: BPP1007 Fitment: Toyota 1JZ and 2JZ engines Construction: Billet main caps Machining: Designed to be installed into the block, then line bored or honed to finish installation Quality control: Machined to tight tolerances and checked with a CMM for accuracy Typical Applications Performance 1JZ and 2JZ engine rebuilds High-boost street and strip combinations Drag, drift and circuit engines needing stronger bottom-end support Fresh JZ builds being machined with upgraded engine parts Fitment Notes Suits Toyota 1JZ and 2JZ engine blocks Engine machining is required after installation; these are not a finished drop-in replacement Best installed as part of a full machining and assembly process by an experienced engine builder Colour may vary Show more