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Spool TB42 or TB45 Conrods and CP Forged Pistons

Original price $2,301.00 - Original price $2,619.00
Original price
$2,301.00 - $2,619.00
Current price $2,301.00

Spool TB42 or TB45 Forged Connecting Rods and custom CP Forged Pistons (Turbo applications)

These custom pistons are available in any bore size and most compression ratios. Turn around time for pistons is generally 4-6 weeks if not in stock.

After placing order online, please email with the bore size and comp ratio required along with combustion chamber volume and head gasket volume.


Pistons come with rings, gudgeon pins and pin locks.

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

CP Pistons standard features include:

  • 5310 gudgeon pins (9310 thicker wall thickness pins are available as an upgrade)
  • Deep valve reliefs accommodate high lift camshafts
  • Larger valve reliefs for +1mm valve sizes
  • Custom skirt cam and barrel design
  • Accumulator grooves
  • High strength aluminium forgings
  • High performance rings
  • Fully CNC machined and balanced to +/- 1 gram
  • Wrist pins included
  • Double pin oilers force fed from oil ring groove
  • Pick lock grooves for easy lock removal
  • Pin fitting included