Toyota 4AGE 20V Blacktop Spool H Beam Conrods and CP Forged Pistons

Spool 4AGE Conrods and CP Pistons are now available for 20V Blacktop Engines

Pistons are available in:

• Compression Ratios: 9.0:1 and 12.0:1
• Bore Sizes: +0.5mm and +1mm
• Pistons come with rings, gudgeon pins and pin locks

The 4AGE con rods have a 45mm big end tunnel (no bearings fitted) to suit 42mm crank journal.

Note: Due to variations in the numerous different models of 4AGE engines, clearancing

in the bottom of the cylinder block is sometimes required for H beam connecting rods.

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

Note: We recommend Joe Gibbs Break in Oil for all new engines.

Where different options are described above, please let us know what option you would like. Some options have additional costs please ask us for a price.

All pistons and conrods are priced as a set. Pistons come with Rings, Pins and Locks. Conrods come with ARP2000 Bolts.

Please allow up to 7 days for delivery of most items. We will contact you if it will be longer or please feel free to ask a question to get a mo...