Quench Clearance Calculator

Calculate piston to head quench clearance

Enter Parameters

Piston below deck surface (positive = in the hole)

Quench Clearance

50 thou
0.0500" / 1.27 mm

Quench Rating

RatingGood
Detonation RiskLow-Moderate

Good for street performance

Recommendations

Max Safe Compression10.5:1
Target Range0.035" - 0.050"

About Quench

Quench is the rapid cooling of the air/fuel mixture caused by close proximity of the piston to the cylinder head. Proper quench clearance helps prevent detonation and allows higher compression ratios.

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