Forged Pistons for Acura/Honda, 88mm, K20A 9:1 or K24A 10.3:1 ( (CP Pistons SC70403)
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|
Make |
Acura/Honda |
|
Model |
K20A/A2/A3 |
|
Part Number |
SC70403 |
|
Cylinders |
4 |
|
Bore (in) |
3.465 |
|
Bore (mm) |
88 |
|
Size |
+2.0mm |
|
Stroke |
86 |
|
Conrod |
139 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-9 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
338 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3465 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2250-20CP1C |
|
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 Acura/Honda, 88mm, K20A 9:1 or K24A 10.3:1 ( (CP Pistons SC70403) |
|---|---|
| Brands | CP Carrillo |
| Engine | K20 |
| Make | Honda |
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 compression ratio do the SC70403 pistons provide for K20A and K24A engines?
The SC70403 pistons provide a compression ratio of 9:1 for K20A engines and 10.3:1 for K24A engines. This makes them suitable for applications where a balance of power and reliability is desired.
What are the recommended bore and stroke specifications for using SC70403 pistons?
The SC70403 pistons are designed for an 88mm bore and an 86mm stroke. Ensure that your engine block is machined to these specifications for optimal performance.
Do I need to modify my engine for these pistons to fit with high lift camshafts?
Yes, while the SC70403 pistons feature deep valve reliefs to accommodate high lift camshafts, you may still need to check clearances and potentially modify the head or camshaft selection to ensure compatibility.
What is the weight of the SC70403 pistons, and how does it affect performance?
Each SC70403 piston weighs 338 grams. The lightweight design contributes to reduced reciprocating mass, which can lead to improved throttle response and higher RPM potential, provided the rest of the engine is built to handle it.
What type of wrist pins are included with the SC70403 pistons?
The SC70403 pistons come with standard wrist pins (part number 866-2250-20CP1C) included at no additional cost. Upgraded and ultra-duty pins are also available for those seeking additional strength.
