Toyota 4AGE 4AGZE ( 20 V Blacktop Turbo / Supercharged ) Rebuild kit with Spool H Beam Conrods and CP Forged Pistons

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This Rebuild Kit includes the following quality parts:
- Spool Forged H Beam Conrods
- CP Forged Pistons (Rings, Pins and Locks Included)
- Cometic MLS Head Gasket
- ACL Race Series Main Bearings - STD or 0.25mm
- ACL Race Series Big End Bearings - STD or 0.25mm
Pistons are available in:
- Compression Ratio: 9.0:1
- Bore Sizes: 81.5mm and 82mm
- Pistons come with rings, gudgeon pins and pin locks
These 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.
| Product Name | Toyota 4AGE 4AGZE ( 20 V Blacktop Turbo / Supercharged ) Rebuild kit with Spool H Beam Conrods and CP Forged Pistons |
|---|---|
| Brands | Spool |
| Engine | 4AGE |
| Make | Toyota |
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:
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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 recommended clearances for the CP pistons in the 4AGE rebuild kit?
The correct bore clearance for CP pistons typically ranges from 0.0015" to 0.0025" depending on the application and intended use. It's crucial to set the ring gaps according to the manufacturer's specifications, considering factors like boost levels and operating temperatures.
What machining is required for the Spool H Beam conrods in this kit?
The Spool H Beam conrods may require big-end or small-end honing to achieve the correct fitment due to variations in journal and pin sizes. Additionally, ensure that the bottom of the cylinder block is clearanced as needed for proper rod installation.
How should I torque the ARP bolts included with the conrods?
For the ARP2000 bolts included with the Spool conrods, use a torque value of around 55 ft-lb for 3/8" bolts and 75 ft-lb for 7/16" bolts, using ARP Ultra-Torque lubricant. Always refer to ARP's latest instructions for the most accurate guidelines.
What compression ratios are available with the CP pistons in this kit?
The CP pistons in this rebuild kit are available with a compression ratio of 9.0:1. Ensure that this ratio aligns with your engine's tuning and performance goals, as it can significantly affect power delivery and reliability.
What type of oil should I use for break-in after installing this rebuild kit?
For break-in, we recommend using Joe Gibbs Break in Oil for all new engines. This oil is formulated to provide optimal protection during the critical initial operating period, helping to ensure proper seating of the rings and longevity of the engine components.
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