Pontiac V8 FT Piston Set 4.165 Bore -.430cc

The Pontiac V8 FT Piston Set 4.165 Bore -.430cc from ICON Pistons represents a precision-engineered solution for serious engine builders and Pontiac V8 enthusiasts undertaking high-performance modifications. This piston set is engineered for applications requiring a specific bore diameter and compression cavity volume, making it essential for stroker builds, vintage muscle car restorations, and race engine assembly where OEM specifications have been superseded by custom rotating assemblies. Whether you're rebuilding a legendary Pontiac 400, 421, or 455 engine or designing a modern stroker combination, this piston set delivers the metallurgical integrity and dimensional accuracy that separates professional builds from amateur work.

ICON Pistons manufactures this set using premium aluminum alloy forging technology, ensuring superior strength-to-weight ratio and thermal conductivity compared to cast alternatives. The 4.165-inch bore diameter accommodates precision ring grooves and piston pin bosses designed to withstand sustained high-RPM operation and boost pressures inherent in modern forced-induction Pontiac conversions. The -.430cc dish cavity provides controlled compression characteristics and efficient combustion chamber geometry, critical for tuning fuel octane requirements and preventing detonation across varying load conditions. Each piston in this set is machined to exacting tolerances, with skirt profiles optimized for reduced friction and minimized blow-by in freshly honed cylinder walls.

This piston set serves engine builders, restoration specialists, and performance mechanics who demand OEM-quality components without the OEM markup. Installation requires professional engine machine work—cylinder boring, honing, and critical deck height measurement—to ensure proper ring gap clearance, piston-to-valve clearance, and balanced reciprocating assembly weight. These pistons integrate seamlessly with Pontiac-specific connecting rods, crankshafts, and block configurations, making them ideal for any Pontiac V8 platform where custom displacement, compression, or performance targets exceed factory specifications. Proper installation with quality ring sets and meticulous assembly procedures will yield years of reliable, high-output performance.