RB30 Twin Cam Timing Cover Extension Kit Upgrade Your RB30 Block with the RB30 Twin Cam Timing Cover ExtensionWhen fitting a twin cam head (RB25, Neo, or RB26) onto an RB30 block, the taller deck height of the RB30 causes a gap between the timing covers. The RB30 Twin Cam Timing Cover Extension solves this problem by filling the gap and ensuring a secure, reliable fit. Whether you’re building a high-performance RB30DET or a custom engine, this extension is an essential upgrade for a seamless timing cover fitment. Key Features: 1. Perfect Fit for RB30 Blocks with Twin Cam Heads: The extension plate is designed specifically for situations where a twin cam head is being fitted to an RB30 block. The taller deck height of the RB30 creates a gap in the timing covers, which this extension fills to ensure a snug, secure fitment. 2. Easy Installation: Option 1: Extension Plate OnlyThe extension plate is made from durable stainless steel, pre-folded for easy installation. It can be spot welded or pop riveted onto the lower RB25, RB26, or Neo timing cover. When using pop rivets, ensure that the rivets do not interfere with the timing belt to avoid belt failure. Option 2: Complete KitThe complete kit comes with a new Nissan lower timing cover (part #13560-58500) and the extension pre-welded onto it. For additional customization, the kit can be finished with gloss black paint for a polished look. 3. Durable Stainless Steel Construction: The extension plate is crafted from high-quality stainless steel, ensuring it can withstand the harsh conditions under the engine bay and provide long-lasting performance. 4. Easy Fitment with Stock Timing Covers: This extension is compatible with the stock lower timing covers from RB25, RB26, or Neo engines, and most covers require minimal manipulation to fit perfectly. Nissan Part #13560-58500 is required for the stock cover. 5. Avoid Timing Belt Issues: When installing the extension with rivets, ensure the rivet length is correct, as excessively long rivets may cause interference with the timing belt, leading to potential failures. Always verify the depth before securing. Kit Options: RB30 Twin Cam Timing Cover Extension (Extension Only):Ideal for those who already have the Nissan lower timing cover and only need the extension plate to fill the gap between the covers. Complete Kit:This complete solution includes a new Nissan lower timing cover with the Boost Doc timing extension pre-welded, offering a ready-to-install solution with an optional gloss black finish. Benefits: Fills the Gap: The extension plate fills the gap between the timing covers when fitting a twin cam head to an RB30 block. Improves Fitment: Ensures a snug fit between the covers for a cleaner, more professional appearance. Durable Construction: Made from stainless steel for longevity and reliability. Customization: Opt for the full kit with the extension pre-welded, or buy the extension plate only for your own custom fitting. Solve your RB30 timing cover gap with the RB30 Twin Cam Timing Cover Extension—whether you’re upgrading your engine for performance or a clean install, this is the essential part for a proper fit!
