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Fine-tune your valve train setup with this Universal Valve Spring Shim, designed for increased valve spring pressure and improved high-RPM performance. With a .060" thickness, 1.000" outer diameter, and .688" inner diameter, this shim is ideal for adjusting spring installed height without changing springs.
By reducing the installed height by .060", this shim boosts both seat pressure (valve closed) and over-the-nose pressure(valve fully open). The result is greater valve control and reduced valve float—perfect for high-performance engines in mini bikes, go-karts, and small engine builds.
Caution: A .060" shim significantly alters spring geometry. Improper use can lead to coil bind. Always measure installed height, spring specs, and total valve lift before installation.
Shim Dimensions:
Key Features:
Common Applications:
Q1: What does a .060" valve spring shim do?
A: It reduces the installed height of your valve spring by .060", significantly increasing both seat and open pressure. This helps improve valve control and stability, especially at high RPMs in racing or performance engine setups.
Q2: Is .060" too thick for my application?
A: It depends on your engine’s setup. A .060" shim creates a noticeable increase in spring pressure but reduces spring clearance. Always measure installed height, valve lift, and coil bind clearance before using thick shims like this.
Q3: What are the dimensions of this shim?
A:
Q4: What engines or heads is this shim compatible with?
A: This universal shim is commonly used in small engine platforms such as Honda GX200, 196cc Clones, Tillotson, Ducar, Wildcat, and Predator 212 / 224 / 240—provided your seat dimensions match the shim.
Q5: How is this shim sold?
A: This shim is typically sold individually, making it great for custom tuning. For larger projects or full engine builds, check if multi-pack options are available.
Returns- Returns must be communicated by customers within 7 days of delivery and sent back within 30 days to receive a refund. No returns without authorization will be accepted. All returns must be accompanied by a copy of the receipt and a note. All items must be returned complete and in new condition.
All returns are subjected to 20% processing and restocking charge after the product has been inspected. The shipping cost will not be refunded.
Refunds will be made back to the same method of payment when ordering those parts. We will not refund a different method of payment.
Non-returnable Items Include- Close Outs and Clearance Items, Special Orders, Custom Orders, Used Parts, and Cut to Length Items. (Other items may apply)
Shipping: All orders are shipped UPS Ground, UPS Surepost or USPS Priority when ordering online. Shipping charges are calculated based on weight, size, and quantity of boxes in addition to processing and handling including insurance. All shipping charges are the customer's responsibility (even if charges online are not the same as emailed or phone orders).
All standard shipping orders will be shipped within a day or two on weekdays. Orders placed on the weekend (Fri-Sun) will be shipped Monday or Tuesday or the first weekday after a holiday. Custom or Handbuilt Products may require more time to be built before shipping. For any reason, an order may be delayed or prevented you will be contacted through phone and/or email.
Express/2nd Day/Next Day Shipments: Express orders must be made by phone orders only! Orders placed after 12:00 p.m. CST. will be processed the Next Business Day. UPS will only guarantee next day shipment. If you choose 2nd-day shipments expecting it before the weekend, UPS does not guarantee its arrival
Additional Fees: Double Check that the address you gave is correct. You may be charged additional fees to redirect your package to the correct address.
PO Boxes: We can ship to PO Boxes using USPS. However, UPS will only accept shipments to a valid street address. They do not deliver to P.O. Boxes.
International Shipping: International buyers are responsible for paying duties, taxes, and applicable customs brokerage fees separate from the merchandise cost. Buyers will generally pay these fees upon receipt of your shipment. Buyers may be charged additional fees once they receive the package. Read our international policy here.
Paypal: All orders paid by a verified PayPal account will be shipped to the address on the Paypal account to comply with Paypal's policy. No Exceptions.
UPS Estimated Shipping Lead Times
USPS Estimated Shipping Lead Times
