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GM Performance Parts to Auction First LSX454R Crate Engine...
GM Performance Parts (GMPP) will auction the first production LSX454R crate engine at the Barrett-Jackson Scottsdale event this month, with the proceeds going to the American Heart Association.
The charity sale is scheduled for the evening of Friday, Jan. 21, and will be carried live on SPEED’s coverage of the Barrett-Jackson auction. The engine carries lot number 1032.1 and bids can be submitted at the auction in person or online.
LSX454R details: The all-new LSX454R crate engine (part number 19257880) is officially rated at 750 plus horsepower and 680 lb.-ft. of torque. It was developed for drag racing, bringing together many of the specialized GMPP LSX parts racers are already using, including the robust LSX Bowtie block. GMPP engineers designed the LSX454R for the unique, high-rpm demands of drag racing. It is a high-compression, solid-roller combination that uses new LSX DR cylinder heads (part number 19166979). The 11-degree, six-bolt aluminum heads feature raised ports that provide tremendous airflow. They are matched on the engine with an exclusive, all-new high-rise open-plenum intake manifold and a Holley 1,150-cfm Dominator carburetor.
LSX454R SPECIFICATIONS -
Part number: 19257880
Engine Type: LSX Series Gen IV small-block V-8
Displacement (cu in): 454 (7.4L)
Bore x stroke (in): 4.185 x 4.125
Block (P/N 19244056): LSX cast iron with 6-bolt, cross-bolted main caps
Crankshaft: 4340 forged steel
Connecting rods: 4340 forged steel
Pistons: forged aluminum
Camshaft type: solid roller
Valve lift (in): 0.738 intake / 0.738 exhaust
Camshaft duration (@ 0.050 in): 250° intake / 270° exhaust
Cylinder heads (P/N 19166979): LSX-DR 11-degree aluminum, six-bolt-type with CNC-machined runners and 50cc chambers
Valve size (in): 2.250 intake / 1.625 exhaust
Compression ratio: 13.1:1
Rocker arms: shaft-mounted, roller-tip and trunnion
Rocker arm ratio: 1.9:1
Recommended fuel: racing gas
Reluctor wheel: 58X
Balanced: internal
Horsepower (estimated): 750 plus
Torque (estimated): 680 lb-ft
Maximum recommended RPM: 6900
CONTACT INFO
GM PERFORMANCE PARTS
gmperformanceparts.com
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