HISTORY: 327 / 5.3

[] 327 / 5.3L

4.001 in Bore

3.25 in Stroke

327 CID 1957 - 1969

  The 327 cu in (5,354 cc) V8, introduced in 1962, had a bore of 4 inch and a stroke of 3.25 inch. Power ranged from 210 hp to 375 hp depending on the choice of carburetor or fuel injection, camshaft, cylinder heads, pistons and intake manifold. In 1962, the Duntov solid lifter cam versions produced 340 hp, 344 lb·ft with single Carter 4-barrel, and 360 hp, 352 lb·ft with Rochester mechanical fuel injection. In 1964, horsepower increased to 365 hp for the now dubbed L-76 version, and 375 hp for the fuel injected L-84 respectively, making the L-84 the most powerful naturally aspirated, single-cam, production small block V8 until the appearance of the 385 hp, 385 lb·ft Generation III LS6 in 2001. This block is one of three displacements that underwent a major change in 1968/1969 when the main journal size was increased from 2.30 inches to 2.45 inches. It's also interesting to note that in 1965 Chevrolet released the now legendary L-79, which was nothing more than an L-76 (11.0:1 forged pop-up pistons, forged steel rods and crank, 2.02 Corvette heads), but with the 30-30 Duntov cam replaced by the #151 hydraulic cam. The 327-350 hp engine could give many big blocks a run for their money.

  In 1966, Checker began offering the 327 as an option. The Avanti II and its successors were powered by the 327 and later versions of the small-block V8.

  In 1968, the 327 was exported to Australia for use in the Holden HK Monaro GTS327. The engine was used in the Monaro after development of the locally made Holden V8 engine fell behind schedule. The 327 was replaced in the 1969 Monaro by the 350.

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