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496?

HDChuck01

By HDChuck01
in Ask A GM Technician

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HDChuck01 Enthusiast

HDChuck01

Posted
Posted

Hi, Don't know if this is the right forum but I have a question. Did GM ever produce a big block 496 and use it in any of their products?

Nytemare Senior Enthusiast

Nytemare

Posted
Posted

The 8.1L in all the 3500's 1999 and up OBS were 496ci engines...maybe the 2500's too not sure.

 

Also there were stroker kits for the 454 that made them 496

 

Buick also had a 496, and IIRC it was used in place of the 502 in some vehicles.

rodram Enthusiast

rodram

Posted
Posted

.... from wiki

 

8100

 

The Vortec 8100 (RPO L18) is a V8 truck engine. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. It retains the same bore centers as the old 7.4 L big-blocks, but stroke was upped by 9.4 mm to reach 8.1L (496cuin) for a total of 107.95 mm bore and 111 mm stroke. It is an all-iron engine (block and heads) with two valves per cylinder. Power output ranges from 225 hp (168 kW) to 340 horsepower (250 kW) and torque from 350 lb·ft (475 N·m) to 455 lb·ft (617 N·m). Vortec 8100s are 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. 8100 marine engines range from 300 to 500 hp and come with a stand-alone ecm. The last L18 was manufactured in December 2009.

 

L18 Applications:

 

* Chevrolet Silverado/GMC Sierra 2500HD & 3500 (option)

* Chevrolet Suburban/GMC Yukon XL (option)

* Chevrolet Express 3/4 or 1 ton

* Chevrolet Avalanche 2500 (std on GMT800 2500)

* T-98 Kombat

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