Chevy LS All 15°/L92 heads, 4.070 bore, 3.622 stroke, 6.125 rods, 1.305 CH, 1.2mm, 1.2mm, 3.0mm rings (CP Bullets BLSR1121-005)

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.

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.

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.

The recommended bore clearance for the BLSR1121-005 pistons is typically between 0.0030" to 0.0035". However, final clearance should be determined based on your specific engine build and intended use.

With a compression ratio of 10.6, it is advisable to use premium unleaded fuel with an octane rating of at least 98 RON to prevent knocking, especially under high load conditions.

Before installation, ensure that the cylinder bores are properly honed to match the piston dimensions and that ring gaps are set according to your engine's specifications. Additionally, check for any necessary balancing of the rotating assembly.

Yes, the BLSR1121-005 pistons are designed to work with standard 15°/L92 heads. However, if using aftermarket heads, ensure that the valve reliefs are compatible and that the overall geometry is suitable for your specific setup.

The gas port feature on the BLSR1121-005 pistons helps improve ring seal and reduces the risk of ring flutter at high RPMs. This is particularly beneficial for high-performance applications where maintaining consistent cylinder pressure is critical.