Prime Performance Parts
Spool Ford XR6 Conrods and ROSS Racing Forged Pistons
Spool Ford XR6 Conrods and ROSS Racing Forged Pistons
Spool XR6 forged connecting rods and ROSS Racing pistons.
This Package includes:
- Spool Forged H Beam Conrods (ARP 2000 3/8 Bolts)
- Custom Ross Racing Forged Pistons (Rings, Pins and Locks)
Ross Racing Pistons Feature:
These Pistons are custom made for Spool and rated at 900-1000hp by Ross Racing Pistons.
- Compression Ratio: OEM Comp Ratio
- Bore Size: +0.001" or +0.25mm
- Pistons come with NPR Gas Nitrided top ring, three pcs. oil
- 4 Valve Pockets
- 0.225” wall Carbon steel
- Forged 2618
- Locks
All of 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.
Spool Connecting Rods Feature:
- ARP 2000 fasteners (L19 fasteners are available as an upgrade)
- High tensile 4340 forged steel
- 2 Piece forging
- Hardness of HRC36-42
- Dowelled caps for precision alignment
- X-RAY & Sonic tested
- Quenching and heat treated
- Shot peened
- 100% Magnafluxed
- Weight Matched Sets +/- 1 gram
- Vacuum degassed to remove impurities
Product images are for description purposes only. Actual product may vary.
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