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Lingenfelter Powered 1988 Callaway Sledgehammer Corvette @ Mecum Kissimmee Auction Jan 24th 2014


  • Lingenfelter Powered 1988 Callaway Sledgehammer Corvette @ Mecum Kissimmee Auction Jan 24th 2014

    Lingenfelter Powered 1988 Callaway Sledgehammer Corvette for Sale @ Mecum Kissimmee Auction Friday January 24th #WhereTheCarsAre

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    Lot F259 1988 Chevrolet Corvette Callaway Sledgehammer
    Bloomington Gold Great Hall Inductee
    Mecum Estimated Sales Price $750,000 - $1,000,000
    2,120 actual miles

    The Callaway Sledgehammer is part of the Richard Berry Callaway Collection and is scheduled to be sold on Friday January 24th at 6:50pm. Mecum Kissimmee January 17-26, 2014 #WhereTheCarsAre

    Based on a 1988 Chevrolet Corvette, the famous Callaway Sledgehammer was built by Callaway to exceed all existing top speed records and as a showcase for Callaway’s industry-leading engineering expertise. For years the Sledgehammer owned the record as the fastest street-driven car in the world, having set the mark on October 26, 1988 when John Lingenfelter drove it to an incredible 254.76 MPH at the Transportation Research Center (TRC) in East Liberty, Ohio.

    To prove that this was a true street car, the record run occurred after Reeves drove the Sedgehammer from the Callaway headquarters in Old Lyme, Connecticut to TRC. This street legal Corvette remained the world's fastest car for 25 years making it the longest speed record holder.

    The Sledgehammer was powered by a Lingenfelter built 350 CID Twin Turbo small block Chevrolet engine producing 880 horsepower and 772 lbs ft of torque.

    Sledgehammer engine specifications:

    Lingenfelter built Chevrolet 350 CID V8
    880 Horsepower 772 lbs ft of torque @ 22 psi of boost

    Chevrolet Bow Tie block – blueprinted
    Cosworth forged steel crankshaft
    Cosworth forged aluminum pistons
    Crower billet steel connecting rods
    Heavy duty rod & main bearings
    Lingenfelter ported & polished Pontiac raised runner aluminum cylinder heads
    2.02 Intake valves 1.60 Inconel exhaust valves
    Jesel shaft rocker arm assembly’s
    Crane roller lifters & pushrods
    Cam Techniques camshaft - 232 duration @ .050 with .558 lift
    Lingenfelter fabricated Holley Tunnel Ram intake manifold
    8 - 75 lbs per hour Rochester fuel injectors
    Lingenfelter 58mm throttle body
    Two hybrid Air Research T04B turbochargers
    Callaway custom stainless steel turbo manifolds
    Callaway twin intercoolers and turbo duct work

    Click here to read the Hot Rod Magazine April 1989 Article by Jeff Smith

    #Callaway Sledgehammer
    Carroll Smith tuned the Sledgehammer’s suspension for high speed stability by relocating the lower control arms, reducing the car’s ride height by one inch. Koni shock absorbers were used in conjunction with 17-inch Dymag aluminum wheels wearing specially made Goodyear tires developed for the high speed run.

    Inside the Paul Deutschman-designed Callaway Aerobody is a mostly stock interior modified for the high speed run with a leather padded roll bar, 5-point harnesses, fire suppression system and instruments for monitoring goings-on beneath the hood. The Callaway Sledgehammer retains the factory air conditioning and sound systems.

    In 2013 the Sledgehammer was inducted into the Bloomington Gold Great Hall, which “recognizes 50 people and 50 Corvettes that significantly influenced the Corvette Phenomenon” – a great honor for one of the world’s great Corvettes.

    About the Track: The Transportation Research Center (TRC) facility is an automotive proving ground located on approximately 4,500 acres of land that has a banked 7.5 mile oval track. TRC offers Vehicle Testing, Crash Testing, Emissions Testing, & Durability Testing. The 7.5-mile (12.1-km) oval test track contains four asphalt lanes on the front straightaway and curves and five asphalt lanes on the back straightaway. The 7.5-mile test track's parabolic banking allows neutral speeds up to 140 mph (225 km/h). The test track features level 2-mile (3.2 km) straightaways.
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