Dedicated right and left forgings; Pin-fitting included at no cost; Chamfered pins and wire locks included; Accumulator and anti-detonation grooves included; Double pin oilers, force fed from oil ring; Radius valve reliefs; Balanced to +/- 1 gram; Pick lock grooves for easy lock removal; Domes may be cut to a flat top; Designed for back-cut rings; Custom skirt cam and barrel shapes; Fully CNC Machined. Notes: D – Rail Support included, G – Supplied with Wire Locks
More Information
Product Name
Chevrolet 13° Flat Top 400 Chevrolet 428, Bore 4.130, CH 1.000, Stroke 4.000, Rod 6.000 - Lefts & Rights (CP Pistons S2401)
Brands
CP Carrillo
Engine
Chev
Make
GM
Delivery & Freight
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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 are the specific machining requirements for the CP Pistons S2401?
The CP Pistons S2401 may require specific bore clearances and ring gap settings based on your engine's configuration. Ensure that the bore is honed to match the 4.130-inch diameter and that the ring gaps are tailored to your intended RPM and power levels. Always consult with your engine builder for precise specifications.
What is the weight of the CP Pistons S2401 and how does it affect performance?
The CP Pistons S2401 weighs 420 grams. This weight is designed to balance performance and durability. Lighter pistons can improve throttle response and reduce reciprocating mass, but ensure your rotating assembly is balanced to maintain reliability at higher RPMs.
Can the dome height of the CP Pistons S2401 be modified?
Yes, the domes on the CP Pistons S2401 can be cut to a flat top if needed. However, any modifications should be done with caution to maintain the structural integrity of the piston and ensure optimal combustion characteristics.
What type of gas porting is included with the CP Pistons S2401?
The CP Pistons S2401 features gas porting designed to enhance ring sealing and reduce blow-by. This is particularly beneficial for high-performance applications where maintaining cylinder pressure is critical.
Are there any specific considerations for the pin fitting of the CP Pistons S2401?
Pin-fitting for the CP Pistons S2401 is included at no extra cost. Ensure that the pin fitment is precise to avoid excessive clearance, which can lead to piston rock and potential failure. Always check with your engine builder for the best practices in pin fitting.
