EL / EF 4.0L SOHC Ross Racing Forged Piston
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Ross Racing Forged Pistons for EL / EF 4.0L SOHC
These are a custom piston made by Ross for Spool Imports.
Pistons are available in:
- Compression Ratio: 9:1
- Bore Size: +0.5mm/+1mm
- 0.200" (5mm) Tool steel 52100 gudgeon pins
- Pistons come with rings, gudgeon pins and pin locks
- Forged 2618
Rated at 1000HP by Ross Racing
Ross Racing Pistons:
All ROSS Racing Pistons (since 1985) have been forged from 2618 billet bar stock and have been heat treated and aged to a T61 condition (2618-T61). 2618-T61 is the material that is used when fatigue resistance and durability are of prime importance by all premium racing piston manufacturers.
This material has less than 1% silicon particulate content. High silicon content pistons (forged from 4032 or MS75) will not stand up to the most extreme stress placed on many racing pistons. If a crack starts to form in a high silicon piston it will continue until the piston experiences a catastrophic failure. Simply stated, adding sand to the aluminum only makes it more brittle. In the rare instance of a 2618-T61 piston cracking, the crack will continue to an area where the stress is not as great and will then stop. Another advantage of 2618-T61 over the high silicon pistons is the ability to keep its shape under extreme pressure and high RPM's. "Skirt Shrinking" is not a problem with ROSS Racing Pistons.
| Product Name | EL / EF 4.0L SOHC Ross Racing Forged Piston |
|---|---|
| Brands | Ross Racing Pistons |
| Make | Ford |
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.
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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 recommended bore clearance for the EL / EF 4.0L SOHC Ross Racing forged pistons?
The recommended bore clearance for these pistons typically ranges from 0.0025" to 0.0035". However, it's essential to consult with your engine builder to determine the optimal clearance based on your specific application and operating conditions.
What compression ratio do the EL / EF 4.0L SOHC Ross Racing forged pistons provide?
These pistons are designed to achieve a compression ratio of 9:1, which is suitable for a balance of performance and reliability in various applications, including street and mild racing setups.
What type of gudgeon pins are included with the EL / EF 4.0L SOHC Ross Racing forged pistons?
The pistons come with 0.200" (5mm) tool steel 52100 gudgeon pins, which are designed for high strength and durability, making them suitable for high-performance applications.
What material are the EL / EF 4.0L SOHC Ross Racing forged pistons made from?
These pistons are forged from 2618-T61 aluminium, known for its excellent fatigue resistance and durability under extreme conditions, making it ideal for high-performance racing applications.
What should I consider when installing the EL / EF 4.0L SOHC Ross Racing forged pistons?
Ensure that the pistons are properly fitted to the bore and that ring gaps are set according to your engine's specifications. It's also critical to balance the entire rotating assembly for optimal performance and reliability.
