Buick Nailhead V8 Engine Specs

Bore, stroke, displacement and compression for all 2 Buick Nailhead V8 engines. Compare variants side by side.

Engine	Displacement	Bore × Stroke	CR	HP
425	425 ci	4.311" × 3.6417"	10.25:1	340
401	401 ci	4.189" × 3.6417"	10.25:1	325

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