Skip to product information
1 of 1

Manley Performance Valve Gen II Valve Blanks 40mm

Manley Performance Valve Gen II Valve Blanks 40mm

Regular price $57.35
Regular price $57.35 Sale price $57.35
Sale Sold out

Out of stock

Quantity

Need this part?

This item is currently unavailable. Ask us about availability or help finding a suitable replacement.

Ask about availability or fitment

Year, make, model and engine help us check fitment.

We'll reply to your inquiry by email. This is not an automatic restock alert.

Shipping & returns

This selection is unavailable. Ask us to confirm availability and timing.

Shipping details

In-stock orders are processed within 48 hours; transit time is additional.

International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.

Read the shipping policy

Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

Read the full return policy
Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

Race Series

- Hard Tips and Hardened Grooves
- No Need for Inserted Tips or Wear Caps

The procedure for ordering a custom valve is as simple as 1-2-3 !
1. Select the blank appropriate for your finished piece based first on stem diameter.
2. Give us your final head diameter along with the seat and margin widths.
3. Specify the length of the valve you want, along with groove type and location.

* Part numbers with asterisks can be reduced 1.500" or 38mm. All others .800" or 20.32mm

Specs:

Type: Exhaust

Maximum Head Diameter: 40.0mm

Stem Diameter: 1.575 8.0mm

Maximum Length: .3130 127.0mm

Underhead Angle/Radius: 5.000 15° x 1/2"

Margin: .080

Seat Width: .100

Top of Head: 9° Dish

Material: XH-426

Set of 1

View full details

Vehicle fitment