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EC 283 High Performance Dual Valve Springs – Honda GX200/Clones
Maximize your engine’s RPM potential and prevent valve float with these High Performance Dual Valve Springs, designed for Honda GX200 clones, including Tillotson, Wildcat, Ducar and Predator engines. Perfect for racing and high-rev applications, these springs offer superior tension and stability, keeping your valvetrain tight and responsive under extreme conditions.
Key Features:
Dual-Spring Design: Inner and outer springs provide increased seat pressure and control at high RPMs, reducing the risk of valve float.
Race-Ready Performance: Ideal for performance builds, including aggressive cams and higher lift setups. Supports up to .500"
Premium Construction: Made from high-quality spring steel for excellent durability and heat resistance.
Fitment: Compatible with most GX200 clone heads, including Hemi and Non-Hemi models. However, pocket cuts will be required with varying depths depending on valve length and installation height.
Unlock the full power of your small engine build with the confidence of a reliable, high-RPM valvetrain upgrade.
Note: Requires upgraded retainers and may need matching valve train components depending on camshaft specs. Not intended for stock governor setups.
Spring Pressure:
1.150 - 39.5lbs
1.100 - 50lbs
1.150 - 60lbs
1.00 - 69lbs
.950 - 79.5lbs
.900 - 90.5lb
.850 - 101.5lb
.800 - 111lb
.750 - 122.5lb
.700 - 134lb
.650 - 158.5lb
.550 Coil Bind
Outer Spring O.D.: 0.970
Outer Spring ID: 0.736
Outer Spring Relaxed Length: 1.375
Outer Spring Wire Diameter: 0.115
Inner Spring O.D.: 0.712
Inner Spring ID: 0.564
Inner Spring Relaxed Length: 1.400
Inner Spring Wire Diameter: 0.075
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
