Spool Ford Barra / XR6 Turbo / 4.0L DOHC – 4.2L 103mm Stroker Kit
Spool Ford Barra / XR6 Turbo / 4.0L DOHC - 3.7L 90mm De-stroke Kit
We carry a limited range of pistons for this kit in stock. If we don't have your exact requirements it will take 6-8 weeks to have pistons made.
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
Spool 4.0 Litre DOHC Barra / XR6 3.7L 90mm Stroker Kit
The 90mm Stroke Crankshaft reduces cubic capacity to 3.7 Litres
This Kit includes the following quality parts:
- Spool Billet 4340 Nitrided Full or Knife Edge Counterweight Crankshaft - 90mm Stroke
- Spool H Beam Forged Connecting Rods with ARP-2000 Bolts (ARP L19 Bolts available as an upgrade)
- Spool Custom CP Extreme Boost Forging 2618 Forged Pistons - 10:1/ +0.25mm if not in stock allow 14-20 weeks
- 9310 0.200" / 5mm Wall Thickness Gudgeon Pins standard (0.250" Pins available as an upgrade)
- We can arrange custom CP pistons to any bore size and comp ratio - custom piston surcharge applies
Note: Clearancing of the cylinder block is sometimes required.
| Product Name | Spool Ford Barra / XR6 Turbo / 4.0L DOHC - 3.7L 90mm De-stroke Kit |
|---|---|
| Brands | Spool |
| Engine | Barra XR6 |
| 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.
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 is included in a typical Spool engine kit?
Kits usually include pistons, rings, rods, bearings and related hardware depending on the engine family. Check the listing for exact inclusions.
Do I still need machining with a full engine kit?
Yes. The block must be honed and all clearances checked and set by your builder. Assembly should only occur after full measurement and verification.
What are the benefits of using the Spool 90mm Stroker Kit for the Barra XR6?
The Spool 90mm Stroker Kit reduces the engine's cubic capacity to 3.7 litres, allowing for a higher rev range and improved throttle response. This can be beneficial for applications where weight and balance are critical, such as in motorsport or performance builds.
What machining is required when installing the Spool Barra 90mm Stroker Kit?
Clearancing of the cylinder block is sometimes required to accommodate the new crankshaft stroke. Additionally, ensure that the big-end and small-end of the conrods are honed to the correct sizes for a proper fit. Always check for adequate clearance with the pistons as well.
What is the recommended compression ratio for the Spool CP pistons in this kit?
The kit includes CP Extreme Boost Forging 2618 forged pistons with a standard compression ratio of 10:1. However, custom pistons can be arranged for different bore sizes and compression ratios, subject to a surcharge.
Can I upgrade the ARP bolts in the connecting rods of this kit?
Yes, the Spool H Beam forged connecting rods come standard with ARP-2000 bolts, but you have the option to upgrade to ARP L19 bolts for enhanced strength and reliability, particularly in high-power applications.
What is the lead time for custom CP pistons if my specifications are not in stock?
If the specific pistons you require are not in stock, it typically takes 14-20 weeks for custom CP pistons to be manufactured to your specifications.
-
Ford XR6 Turbo Barra Billet Oil Pump GearsAUD$380.00
