100% OEM Authentic Nissan Parts
This Nissan SR20DET "Notchtop" Bare Cylinder Head is the foundational component for an S14 or S15 Silvia engine build. Since this is a "bare" head, it is designed for builders who plan to install their own valvetrain, such as aftermarket cams, springs, and retainers.
Product Overview
Engine Compatibility: Specifically for the SR20DET Notchtop found in the Nissan Silvia S14 and S15.
Condition: Bare cylinder head (no valves, springs, or cams included).
Key Design Feature: The "Notchtop" design includes the characteristic notch in the casting to accommodate the Variable Cam Timing (VCT) system found on later SR20DET models, which provides better mid-range torque compared to the earlier "Redtop" or "Blacktop" S13 engines.
Technical Specifications & Benefits
High-Flow Potential: The Notchtop head is often preferred for its improved port geometry and factory VCT support.
Customization Ready: Ideal for high-horsepower builds where factory valvetrain components would otherwise be discarded for performance upgrades (e.g., Tomei, GSC, or Brian Crower components).
Authenticity: Sourced as a genuine Nissan/Nismo component, ensuring factory-spec tolerances for deck flatness and port alignment.
This Nissan SR20DET "Notchtop" Bare Cylinder Head is the foundational component for an S14 or S15 Silvia engine build. Since this is a "bare" head, it is designed for builders who plan to install their own valvetrain, such as aftermarket cams, springs, and retainers.
Product Overview
Engine Compatibility: Specifically for the SR20DET Notchtop found in the Nissan Silvia S14 and S15.
Condition: Bare cylinder head (no valves, springs, or cams included).
Key Design Feature: The "Notchtop" design includes the characteristic notch in the casting to accommodate the Variable Cam Timing (VCT) system found on later SR20DET models, which provides better mid-range torque compared to the earlier "Redtop" or "Blacktop" S13 engines.
Technical Specifications & Benefits
High-Flow Potential: The Notchtop head is often preferred for its improved port geometry and factory VCT support.
Customization Ready: Ideal for high-horsepower builds where factory valvetrain components would otherwise be discarded for performance upgrades (e.g., Tomei, GSC, or Brian Crower components).
Authenticity: Sourced as a genuine Nissan/Nismo component, ensuring factory-spec tolerances for deck flatness and port alignment.
Once your order ships, you'll receive a confirmation email with your tracking number and a link to track your shipment in real time. You can also track your order anytime by visiting the Order Status page using the link in your confirmation email. If you haven't received tracking info within 2–3 business days of your order, please contact us at Nizmopartsplug@gmail.com and we'll look into it right away.
We accept returns within 30 days of delivery on unused, uninstalled items in original packaging. A 20% restocking fee applies to eligible returns. Certain items are non-returnable, including electronic parts, special orders, and installed parts. Defective or incorrect items must be reported within 7 days. For full details, please review our Return Policy page before purchasing.
Yes — all parts sold on NizmoPartsPlug are brand new unless explicitly stated otherwise in the product listing. We source genuine OEM Nissan components and authentic aftermarket parts directly from trusted suppliers. If a part is used, refurbished, or a core charge item, it will be clearly noted in the product title and description.
Absolutely — if you don't see the part you need listed on our site, reach out to us at Nizmopartsplug@gmail.com or call us at (908) 265-4568 with the part number and we'll do our best to source it for you. We specialize in OEM Nissan and JDM components and have access to an extensive supplier network. Please note that special order parts may require a deposit and are non-returnable once ordered.
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JDM to US License plate adapter bracket
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