Forged Pistons for Acura/Honda, 87.5mm, K24A w/ K20A or K24A head, 9:1 ( (CP Pistons SC70451)
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|
Make |
Acura/Honda |
|
Model |
K24 w/K20A/A2/A3 |
|
Part Number |
SC70451 |
|
Cylinders |
4 |
|
Bore (in) |
3.445 |
|
Bore (mm) |
87.5 |
|
Size |
+0.5mm |
|
Stroke |
99 |
|
Conrod |
152 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-18.1 |
|
Compression Ratio |
9 |
|
Weight (Grams) |
318 |
|
Pin (mm) |
22 |
|
Rings |
CPN-3445 |
|
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, 87.5mm, K24A w/ K20A or K24A head, 9:1 ( (CP Pistons SC70451) |
|---|---|
| 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 is the recommended bore clearance for the SC70451 pistons?
The recommended bore clearance for the SC70451 pistons is typically around 0.0015" to 0.0025". However, it is crucial to verify this with your specific engine build and ensure proper fitment based on your machining tolerances.
Can I use these pistons with a K20A head on a K24 block?
Yes, the SC70451 pistons are designed for use with a K24 block and can be paired with a K20A head. This combination is popular for achieving higher compression and improved performance, but ensure that your engine is properly tuned for optimal results.
What type of rings are included with the SC70451 pistons?
The SC70451 pistons come with high-performance CP rings, specifically the CPN-3445 set. These rings are designed to provide excellent sealing and durability under high-performance conditions.
What is the weight of the SC70451 pistons, and how does it affect performance?
Each SC70451 piston weighs approximately 318 grams. This lightweight design helps reduce reciprocating mass, which can improve engine response and overall performance, especially at higher RPMs.
Do I need to modify my engine for these pistons to fit?
While the SC70451 pistons are designed to fit standard K24 applications, you may need to perform some machining, such as honing the cylinder bores, to achieve the correct fit and clearance. Always consult with your engine builder for specific requirements.
