Forged Pistons for Acura/Honda, 87mm, K20A/A2 11.2:1, or K24A 12.5:1 (No K20A3 head) (CP (CP Pistons SC7147XA)
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|
Make |
Acura/Honda |
|
Model |
K24 w/K20A/A2 |
|
Part Number |
SC7147XA |
|
Cylinders |
4 |
|
Bore (in) |
3.425 |
|
Bore (mm) |
87 |
|
Size |
STD |
|
Stroke |
99 |
|
Conrod |
152 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
5.1 |
|
Compression Ratio |
12.5 |
|
Weight (Grams) |
303 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3425 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
866-2000-15CP1C |
|
Upgraded Pin |
866-2000-17CP3C |
|
Ultra Duty Pin |
NA |
|
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, 87mm, K20A/A2 11.2:1, or K24A 12.5:1 (No K20A3 head) (CP (CP Pistons SC7147XA) |
|---|---|
| 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 SC7147XA pistons provide for K20A/A2 and K24A engines?
The SC7147XA pistons offer a compression ratio of 11.2:1 for K20A/A2 engines and 12.5:1 for K24A engines. Ensure that your engine's setup is compatible with these ratios for optimal performance.
What machining is required for the SC7147XA pistons?
When installing SC7147XA pistons, it's essential to check and set the correct bore clearance and ring gaps as per your engine's specifications. Additionally, ensure that the piston-to-wall clearance is within recommended limits for your application.
Are the SC7147XA pistons compatible with high lift camshafts?
Yes, the SC7147XA pistons feature deep valve reliefs that accommodate high lift camshafts, making them suitable for performance builds that utilise oversized valves and aggressive cam profiles.
What is the weight of the SC7147XA pistons, and how does it affect performance?
Each SC7147XA piston weighs 303 grams. Lighter pistons can improve engine response and reduce reciprocating mass, but ensure that your engine is balanced correctly with the full rotating assembly for reliability.
What type of wrist pins are included with the SC7147XA pistons?
The SC7147XA pistons come with standard wrist pins (part number 866-2000-15CP1C) included at no additional cost. If you require upgraded pins, you can opt for the upgraded pin option (part number 866-2000-17CP3C).
