Forged Pistons for Acura/Honda, B16A, 84.5mm, 8.3:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 9:1 (CP Pistons SC7021)
For shipping cost -add all the products you would like, then navigate to the shopping cart to calculate shipping quote.
|
Make |
Acura/Honda |
|
Model |
B16A |
|
Part Number |
SC7021 |
|
Cylinders |
4 |
|
Bore (in) |
3.327 |
|
Bore (mm) |
84.5 |
|
Size |
+3.5mm |
|
Stroke |
77.4 |
|
Conrod |
134.3 |
|
Comp Height (in) |
1.181 |
|
Comp Height (mm) |
30 |
|
Dom/Dish CC |
-11.8 |
|
Compression Ratio |
8.3 |
|
Weight (Grams) |
298 |
|
Pin (mm) |
21 |
|
Rings |
CPN-3327 |
|
Ring Thickness |
1.0 x 1.2 x 2.8mm |
|
Pin included (Standard) |
827-2250-20CP1C |
|
Upgraded Pin |
827-2250-20CP3C |
|
Ultra Duty Pin |
827-2250-25CP3C |
|
Locks |
827x063 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, B16A, 84.5mm, 8.3:1 or B20 or Sleeved B18 Block w/B16A or B18C Head, 9:1 (CP Pistons SC7021) |
|---|---|
| Brands | CP Carrillo |
| Engine | B16 - Honda, B18 - Honda |
| Make | Honda |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
If you only see the Click and Collect shipping option, it means that your address was not validated correctly.
If you have issues calculating freight, please get in touch. We are happy to help.
Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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 can I achieve with the SC7021 pistons in my B16A engine?
The SC7021 pistons provide an 8.3:1 compression ratio when used in a B16A engine. If you are using them in a B20 or a sleeved B18 block with a B16A or B18C head, you can achieve a 9:1 compression ratio.
What are the recommended bore and ring specifications for the SC7021 pistons?
The SC7021 pistons have a bore size of 84.5mm and require the use of CP rings, specifically the CPN-3327. Ensure that the bore clearance and ring gaps are set according to your engine build specifications.
Do I need to modify my engine for the SC7021 pistons?
Yes, the SC7021 pistons feature deep valve reliefs to accommodate high lift camshafts and oversized valves. Ensure your engine is compatible with these features and that proper machining is done to achieve the desired performance.
What is the weight of the SC7021 pistons and how does it affect performance?
Each SC7021 piston weighs 298 grams. The lightweight design helps reduce reciprocating mass, which can improve engine response and overall performance, especially at higher RPMs.
Are the wrist pins included with the SC7021 pistons suitable for high-performance applications?
Yes, the SC7021 pistons come with standard wrist pins included at no additional cost. For even higher performance, you can opt for upgraded or ultra-duty pins, which are designed to handle increased loads and stresses.
