Wiseco Piston Kit Chevy BB Drag 1.270 (6238A6) B:4.310

CHEVROLET BIG BLOCK • OPEN CHAMBER • 24° CONVENTIONAL HEAD Wiseco Pistons

• Designed to use with Nitrous/Full round forging
• Lateral Gas Ports
• 2618 High Strength Alloy
• Anti-detonation & pressure seal grooves
• .160" wall pin & Double Spirolox®
• C/R at 0 deck with .040" gasket
• 1/16" , 1/16”, 3/16" Rings Sold Separately
• Radiused Valve Pockets and CNC Racde-ready Domes

BBC • Hollow Dome • Light Weight Drag

Kit Part #: K238A6
Bore: 4.310
Comp Ht: -
Stroke: 4.25, 4.250
Rod: 6.385, 6.800
0 Deck at: 9.78, 10.195
Std. Deck Ht: 9.8, 10.200
Avg: Wt: 550
Volume: 48.4cc* Hollow
Compression Ratio At 110cc: 14.8
Compression Ratio At 114cc: 14.1
Compression Ratio At 119cc: 13.3
Compression Ratio At 123cc: 12.7
Pin Part # Included: S460 .990 x 2.930
Ringset Sold Separately: J100F8-4310-5
Skirt Type: Full Round