PRI 2010: Livernois’ 5.0 308ci Long Block, GM LS Rocker Stands

Livernois Motorsports 306ci Ford 5.0 long block

The 2011 Mustang 5.0 engine hasn’t been anything less than a complete success.  The 412 HP rated by Ford is under rated, as most engines have been putting down about 360 RWHP stock.  And like any good factory engine comes the crate engines, so that others can replicate the proven power potential of the 5.0.

Livernois Motorsports has released their 308 short block that features a stock bore with stroker crank combination.  The motor can be configured with boosted, low compression pistons or high compression pistons.  The rotating assembly comes with Manley/Livernois H-Beam rods plus ARP 2000 bolts, Diamond pistons with dome and skirt coatings, and a custom steel stroker Livernois crank.  The cylinder heads have been massaged with a full CNC intake and exhaust port job.  Also it gets a valve job, though the stage one porting still retains all the factory valvetrain components.  But of course, if you want to buy any of these components separately, Livernois does that as well.

High spring pressures, an aggressive cam design, and high RPM all wreak havoc on an engine’s valvetrain.  Keeping rockers in place, without broken stands, will keep performance at its maximum and expensive engine parts from being damaged. Livernois has released a billet 6061-T6 aluminum rocker stand for LS cathedral port heads.  The thicker, reinforced cross section helps prevent flexing.  It also comes with upgraded ARP hardware to further improve stability.

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About the author

Mark Gearhart

In 1995 Mark started photographing drag races at his once local track, Bradenton Motorsports Park. He became hooked and shot virtually every series at the track until 2007 until he moved to California and began working as a writer for Power Automedia. He was the founding editor for its first online magazines, and transitioned into the role of editorial director role in 2014. Retiring from the company in 2016, Mark continues to expand his career as a car builder, automotive enthusiast, and freelance journalist to provide featured content and technical expertise.
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