Toyota 4AGE 4AGZE ( 20 V Silvertop Turbo / Supercharged ) Rebuild kit with Spool H Beam Conrods and CP 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 Silvertop Turbo / Supercharged ) Rebuild kit with Spool H Beam Conrods and CP pistons |
|---|---|
| Brands | Spool |
| Engine | 4AGE |
| Make | Toyota |
Delivery & Freight
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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 this rebuild kit?
The bore clearance for CP pistons typically ranges from 0.0025" to 0.0035" depending on the specific application and intended use. It's crucial to set the ring gaps according to the boost levels and RPM you plan to run. Always consult the manufacturer's specifications and adjust based on your engine's requirements.
What machining is required for the Spool H Beam conrods in this kit?
The Spool H Beam conrods may require honing of the big-end or small-end to ensure proper fitment due to manufacturing tolerances. Additionally, clearancing in the bottom of the cylinder block is sometimes necessary to accommodate the H beam design. Always verify fitment before final assembly.
What is the torque specification for the ARP2000 bolts included with the conrods?
For the ARP2000 bolts that come standard with the Spool H Beam conrods, the recommended torque value is approximately 55 ft-lb for 3/8" bolts when using ARP Ultra-Torque lubricant. Always refer to ARP's latest instructions for the most accurate specifications.
Can I use a different compression ratio with the CP pistons in this kit?
This rebuild kit includes CP pistons with a standard compression ratio of 9.0:1. If you wish to use a different compression ratio, you would need to source custom pistons that meet your specifications. Keep in mind that changing the compression ratio will affect engine performance and tuning requirements.
What type of oil should I use during the break-in period for this engine kit?
We recommend using Joe Gibbs Break in Oil for all new engines built with this rebuild kit. This oil is formulated to provide optimal protection during the critical break-in period, ensuring proper seating of the rings and longevity of the engine components.
