Engines and Components Camshafts and Valvetrain

Tomei

Beryllium Copper Valve Seat Ring

$720.00

SKU: TA310A-SB01A

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

Crafted from beryllium copper alloy (BeCu), known for its superior heat conduction properties, these rings help manage extreme engine temperatures under high rotation and load. This improved cooling performance around the valve seat is crucial for increasing the knock limit and achieving higher engine output, especially in racing applications where precise temperature control is vital.
Show original supplier description
The Tomei Beryllium Valve Seat Ring Set (Part # TA310A-SB01A) is engineered for high-performance engines where maintaining optimal temperatures is critical for maximizing output. Constructed from a beryllium copper alloy (BeCu), chosen for its exceptional thermal conductivity—surpassing even silver and gold—these valve seat rings effectively dissipate heat away from the cylinder head. This superior heat transfer is essential for preventing detonation (knocking) and allowing the engine to reach its full potential under demanding conditions like those found in racing. The beryllium copper alloy also provides excellent mechanical intensity, fatigue resistance, and wear resistance, ensuring durability even in high-RPM, high-load scenarios. Unlike standard seat rings that can struggle to disperse heat, leading to potential cracking, Tomei's BeCu rings offer a significant advantage in thermal management. This direct impact on cylinder cooling is a key factor in unlocking higher engine performance by raising the knock limit. This set is specifically designed for EJ205, EJ207, EJ255, and EJ257 engines. Installation of performance parts may require specialized tools and expertise; it is recommended that these components be installed by specially trained mechanics.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTomei
Part NumberTA310A-SB01A
CategoryEngines and Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy