Chevy 8.1L Long Block At Roadmaster Engine World.

The Vortec 8100 is a V8 truck engine. 2001-2006 Chevy 8.1L engines available at Roadmaster. 2001     8.1L – Roller Cam, Vin G,E 02-03    8.1L – Roller Cam, Vin G,E 04-06    8.1L – Roller Cam, Vin G,E This is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. An all-iron engine (block and heads) with two valves per cylinder. It retains the same bore centers as the old 7.4 L big-blocks. But stroke was upped by 9.4 mm (0.4 in) to reach 8.1L (496cuin) for a total of 107.95 mm (4.3 in) bore and 111 mm (4.4 in) stroke. Power output ranges from 325 hp (242 kW) to 550 hp (410 kW) and torque from 455 lb·ft (617 N·m) to 690 lb·ft (936 N·m). Vortec 8100s were built in Tonawanda, New York. The Vortec 8100 is the engine used in the largest Uhaul, their 26-foot (7.9 m) truck. GM stopped installing big block V-8’s in the Silverado HD trucks, when the GMT-800 series was discontinued in 2007. Important differences between the Vortec 8100 and older big blocks include a changed firing order (1-8-7-2-6-5-4-3), a new 18-bolt head bolt pattern. Also different symmetrical intake … Continue reading Chevy 8.1L Long Block At Roadmaster Engine World.