Forged Pistons for Toyota 1JZ 9:1 /2JZ 87 10:1 (CP Pistons SC7473)
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|
Make |
Toyota |
|
Model |
1JZGTE |
|
Part Number |
SC7473 |
|
Cylinders |
6 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
+1.0mm |
|
Stroke |
71.5 |
|
Conrod |
125.25 |
|
Comp Height (in) |
1.338 |
|
Comp Height (mm) |
34 |
|
Dom/Dish CC |
-4.5 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
337 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3425 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-18CP1C |
|
Upgraded Pin |
866-2250-20CP3C |
|
Ultra Duty Pin |
866-2250-25CP3C |
|
Locks |
866x063 SWL |
CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power. Standard features include: Deep valve reliefs accommodate high lift camshafts; Larger valve reliefs for +1mm valve sizes; Custom skirt cam and barrel design; Accumulator grooves; High strength aluminum forgings; High performance rings; Fully CNC machined and balanced to +/- 1 gram; Wrist pins included at no additional cost; Double pin oilers force fed from oil ring groove; Pin lock grooves for easy lock removal; Pin fitting included.
| Product Name | Forged Pistons for Toyota 1JZ 9:1 /2JZ 87 10:1 (CP Pistons SC7473) |
|---|---|
| Brands | CP Carrillo |
| Engine | 1JZ, 1JZ-GTE, 2JZ, 2JZ-GTE |
| Make | Toyota |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended compression ratio for the SC7473 pistons?
The SC7473 pistons are designed to achieve a compression ratio of 9:1 for the Toyota 1JZ and 10:1 for the 2JZ. It's crucial to ensure that your engine's setup, including head gasket thickness and combustion chamber volume, aligns with this specification to achieve optimal performance.
What bore size do the SC7473 pistons accommodate?
The SC7473 pistons have a bore size of 87mm, with a +1.0mm oversize option. Ensure that your engine's cylinders are machined to the correct bore size to maintain proper clearance and performance.
What type of wrist pins are included with the SC7473 pistons?
The SC7473 pistons come with standard wrist pins (part number 866-2250-18CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those looking for enhanced performance or durability.
Are the SC7473 pistons compatible with high lift camshafts?
Yes, the SC7473 pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance builds that require larger valve sizes or aggressive cam profiles.
What machining considerations should I keep in mind when using SC7473 pistons?
When using SC7473 pistons, ensure that the engine builder sets the correct bore clearance and ring gaps as per your specific application. Additionally, the pistons should be fully balanced with the rotating assembly to maintain reliability and performance.
