What does the '+1.0mm Head Dia' mean for this valve?

This indicates that the valve head is 1.0mm larger in diameter than the stock, original equipment valve. It's designed for use in engines where the cylinder head's valve seat has been machined to accommodate this larger size, often during performance rebuilds or to repair worn seats.

Is this valve sold individually or as a set?

This Brian Crower exhaust valve is sold individually. You will need to purchase the correct quantity for your engine's needs, as engines typically have multiple exhaust valves per cylinder.

What other components are typically replaced during an exhaust valve job?

When replacing exhaust valves, it's common practice to also inspect and potentially replace valve springs, retainers, seals, and guides. If you are using oversize valves, the valve seats in the cylinder head will also need to be machined to match the new valve size.

Brian Crower 1JZGTE Exhaust Valve BC3313-1

Name: Brian Crower Toyota 1JZGTE/Lexus 1JZGE 31mm (+1.0mm Head Dia) Exhaust Valve - Single
Brand: Brian Crower
SKU: brian-crower-brian-crower-toyota-1jzgte-lexus-1jzge-31mm-1-0mm-head-dia-exhaust--t14-373162
Price: 24.58 USD
Availability: BackOrder

Brian Crower Toyota 1JZGTE/Lexus 1JZGE 31mm (+1.0mm Head Dia) Exhaust Valve - Single

$24.58

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Brian Crower 1JZGTE/1JZGE exhaust valve. 31mm head diameter, +1.0mm oversize.

Key Features

Fits Toyota 1JZGTE and Lexus 1JZGE engines.
Exhaust valve with a 31mm head diameter.
This is a +1.0mm oversize valve, intended for use when valve seats have been machined to accept a larger diameter.
Single valve replacement.

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Product Details

If you're rebuilding the top end of your Toyota 1JZGTE or Lexus 1JZGE engine, especially if you're looking to restore performance after wear or damage, new exhaust valves are a critical component. This single exhaust valve from Brian Crower is designed to fit those specific engines, offering a direct replacement for your worn-out original parts.

This particular valve features a 31mm head diameter, which is a +1.0mm oversize dimension. This means it's intended for applications where the cylinder head valve seat has been machined to accept a larger valve, often done during a performance rebuild or to correct worn valve seats. Brian Crower is known for making well-built engine components, and these valves are made to meet the demands of a refreshed engine, helping to ensure proper sealing and efficient exhaust gas flow.

When installing these valves, it's important to ensure your valve guides and seats are properly prepared and machined to the correct size for this +1.0mm oversize valve. Always refer to the manufacturer's installation instructions for the most accurate guidance on fitting these components into your engine.