Forged Pistons for Toyota 1JZ 9:1 /2JZ 87.5 10:1 (CP Pistons SC7474)
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|
Make |
Toyota |
|
Model |
1JZGTE |
|
Part Number |
SC7474 |
|
Cylinders |
6 |
|
Bore (in) |
3.445 |
|
Bore (mm) |
87.5 |
|
Size |
+1.5mm |
|
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) |
355 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3445 |
|
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 87.5 10:1 (CP Pistons SC7474) |
|---|---|
| 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 SC7474 pistons?
The SC7474 pistons are designed for a compression ratio of 9:1 when used in the Toyota 1JZ engine. For the 2JZ engine, these pistons provide a higher compression ratio of 10:1.
What bore size do the SC7474 pistons accommodate?
The SC7474 pistons have a bore size of 87.5 mm, which is suitable for the 1JZ and 2JZ engines. Ensure that your engine's cylinder bore is properly machined to this specification for optimal performance.
What type of wrist pins are included with the SC7474 pistons?
The SC7474 pistons come with standard wrist pins (part number 866-2250-18CP1C) included at no additional cost. Upgraded and ultra-duty wrist pins are also available for those seeking enhanced performance.
Can the SC7474 pistons handle high lift camshafts?
Yes, the SC7474 pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance builds that require larger valve sizes and increased lift.
What machining considerations should be taken into account when using SC7474 pistons?
When installing SC7474 pistons, ensure that the engine builder sets the correct bore clearance and ring gaps according to the specific requirements of the engine. Proper machining is crucial for achieving reliable performance.
