Performance Springs Isuzu G161/180/200 /Ford 2L Dual Valve Spring & Ti-Retainer Kit
Performance Valve Spring HOLDEN ISUZU 4ZD1 4ZE1 Dual Valve Spring Kit
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Dual Valve Spring Set for Holden / Isuzu 4ZD1 / 4ZE1 Engines
This dual-spring arrangement is suited for 4ZD1 and 4ZE1 cylinder heads requiring increased spring load to support moderate camshaft upgrades or forced-induction operation. The geometry provides increased control across the lift range.
Spring Characteristics
- O.D.: 1.325" (33.6 mm)
- I.D.: 0.710" (18 mm)
- Installed: 95 lbs at 1.530"
- Open: 240 lbs at 1.100"
- Coil Bind: 0.895"
| Product Name | Performance Valve Spring HOLDEN ISUZU 4ZD1 4ZE1 Dual Valve Spring Kit |
|---|---|
| Brands | Performance Springs |
| Engine | 4ZE1 |
| Make | Holden |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the maximum lift these valve springs can handle?
The PS-1006D-8 valve springs are designed to accommodate a maximum lift of approximately 0.500 inches. Always ensure that your camshaft specifications are compatible with this lift to prevent coil bind.
Can I use these valve springs with stock retainers?
Yes, the PS-1006D-8 valve springs are designed for a straightforward installation using your stock retainers. This allows for an easy upgrade without the need for additional parts.
What is the recommended installation height for these valve springs?
The recommended installation height for the PS-1006D-8 valve springs is 1.530 inches at 95 lbs of pressure. Proper installation height is crucial for optimal performance and longevity.
Are these valve springs suitable for high-performance applications?
Yes, the PS-1006D-8 valve springs are suitable for high-performance applications, particularly in modified Holden and Isuzu 4ZD1 and 4ZE1 engines. They provide increased load capacity and stability at higher RPMs.
What should I check for to ensure proper fitment of these valve springs?
When installing the PS-1006D-8 valve springs, check for adequate clearance to prevent coil bind, particularly at maximum lift. Ensure that the spring seats are clean and free of debris for proper fitment.
