Chevy 355ci ASCS 4.020 Bore 1.250 CH Vert Gas Ports - Lefts & Rights (CP Bullets BCRE1340-020)
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 is the recommended bore clearance for the BCRE1340-020 pistons?
For the BCRE1340-020 pistons, a typical bore clearance of 0.0030" to 0.0035" is recommended. However, this can vary based on the specific application and operating conditions, so always consult your engine builder for the best fit.
What compression ratio can I expect with the BCRE1340-020 pistons in a 355ci small block?
The BCRE1340-020 pistons provide a compression ratio of 14.1:1 when used with a 58cc head. Ensure that your engine is properly tuned to handle this high compression for optimal performance and reliability.
What type of fuel is recommended for engines using the BCRE1340-020 pistons?
Due to the high compression ratio of 14.1:1, it is advisable to use high-octane fuel, such as 98 RON or better, to prevent detonation and ensure reliable performance.
Are there any special machining requirements for the BCRE1340-020 pistons?
Yes, the BCRE1340-020 pistons may require specific bore honing to achieve the correct clearance. Additionally, ensure that the ring lands are properly prepared and that the ring gaps are set according to your engine's specifications.
What is the weight of the BCRE1340-020 pistons and how does it affect performance?
The BCRE1340-020 pistons weigh 467 grams. While this weight is typical for high-performance applications, it is essential to balance the entire rotating assembly to minimise vibration and maximise engine efficiency.
