Toyota 4AGE and 4AGZE (16V and 20V Silvertop) Spool H Beam Conrods and CP Forged Pistons
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Spool 4AGE and 4AGZE Silvertop Forged Connecting Rods and CP Forged Pistons
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.
| Product Name | Toyota 4AGE and 4AGZE (16V and 20V Silvertop) 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:
Product images are for description purposes only. Actual product may vary.
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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 compression ratios are available for the CP pistons in the SPL-4AGE-H-CP kit?
The CP pistons in the SPL-4AGE-H-CP kit are available in compression ratios of 9.0:1 and 12.0:1. Choose the ratio that best suits your performance goals and engine setup.
Do the Spool H beam conrods require any modifications for fitment in the 4AGE engine?
Yes, due to variations in the numerous models of the 4AGE engines, clearancing in the bottom of the cylinder block may be required for the H beam connecting rods to fit properly.
What is the big end tunnel size for the Spool conrods in this kit?
The Spool conrods in the SPL-4AGE-H-CP kit feature a 45mm big end tunnel designed to suit a 42mm crank journal. Ensure proper fitment and alignment during installation.
What type of fasteners are used in the Spool conrods, and are there upgrade options?
The Spool conrods come standard with ARP2000 fasteners. An upgrade to L19 fasteners is available for those seeking additional strength and reliability.
What machining considerations should I keep in mind for the CP pistons?
When using the CP pistons, ensure that the bore clearance and ring gaps are set according to your engine build specifications. Proper machining is crucial for optimal performance and longevity.
