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12530283
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12530283 - Chevrolet Performance - 5.7L (L31-R)

SKU: 12530283

Description:
For 3/4 & 1 ton trucks with the heavy duty option.

Included Items:
Consists of engine block, crankshaft, connecting rods, pistons, piston rings, cylinder head assemblies (including valve train components), lifters, camshaft, timing gears and chain, timing chain dampener, front cover, harmonic balancer, oil pump, valve covers and oil pan, unless otherwise specified.

Fits:
1996, 1997, 1998, 1999, 2000, 2001, 2002 Chevrolet Express (G2,3)
1996, 1997, 1998, 1999, 2000, 2001, 2002 GMC Savana (G2,3)
1996, 1997, 1998, 1999, 2000 Chevrolet Pickup (CK2,3)
1996, 1997, 1998, 1999, 2000 GMC Pickup (CK2,3)
1996, 1997, 1998, 1999, 2000 GMC Suburban (CK2,3)
1996, 1997, 1998, 1999 Chevrolet Chassis (P3)
1996, 1997, 1998, 1999 GMC Chassis (P3)

Specs:
1986-2000 style block, 1pc rear seal 4 bolt mains -(No mechanical Fuel Pump Provision)
Nodular Iron Crankshaft
Powdered Metal Connecting Rods
Hypereutectic Pistons
9.4:1 Compression Ratio
Roller Camshaft-
Specs-
Intake Lift- .414"
Exhaust Lift-.428"
Intake Duration @.050"- 191
Exhaust Duration @ .050-196
Lobe Centerline-111
Vortec Cylinder Heads- 64cc,1.94" intake,1.50" exhaust
Includes: Oil Pan, Timing Cover,Valve Covers and Harmonic Balancer

Applications:
RPO - L31

Notes:
4 Bolt mains. Service engine block contains english threads, when used for 2001 vehicles and newer, must also use 2000 model year starter/ transmission/ engine mounting bolts

Warranty Information

Please contact on of our powertrain specialists for specific vehicle fitment.