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GM 12530283 Replacement Long Block Vortec 5.7/350 Crate Engine
GM 12530283 Replacement Long Block Vortec 5.7/350 Crate Engine

GM 12530283 Replacement Long Block Vortec 5.7/350 Crate Engine

350 Chevy Small Block V8, 350 cu. in. Engine Displacement, Long Block Crate Engine Type

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GM 12530283 Replacement Long Block Vortec 5.7/350 Crate Engine
GM 12530283 Replacement Long Block Vortec 5.7/350 Crate Engine
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Part # 35512530283
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Details

Horsepower:
250 horsepower
Torque:
330 ft./lbs.
Engine Displacement:
350 cu. in.
Crate Engine Type:
Long Block
Compression Ratio:
9.4:1
Camshaft Type:
Hydraulic Roller
Piston Material:
Hypereutectic Aluminum
Crankshaft Material:
Nodular Iron
MFG. Part #:
12530283
Connecting Rod Material:
Powdered Metal
Sold in Quantity:
Each
Notes:
For 1996-2000 3/4 ton and 1 ton Chevy/GMC Trucks (not 1/2 ton)
Cylinder Heads Included:
Yes
Rear Main Seal Style:
1-piece
Oil Pan Included:
Yes
Timing Cover Included:
Yes
Harmonic Balancer Included:
Yes
Cylinder Head Style:
Assembled

Info

Formerly GM Goodwrench, this Genuine GM Parts Replacement Engine is the Heavy Duty replacement engine direct from GM Powertrain and fits most 3/4 and 1-Ton G-Series Vans, P-Series Trucks, Silverado's, Sierra's, and Suburban's.  Designed to fit 1996-2000 full size Chevy/GMC trucks and 1996-2002 Chevy/GMC full size vans.  The Vortec HD version 350 uses a 4-Bolt main block, upgraded exhaust valves and cylinder heads for heavy duty applications. This engine is not intended for marine usage. Features new components, brand new complete long block engine backed by a limited 3-year, 100,000 mile GM warranty when installed into an approved GM application. This GM Replacement Crate Engine is perfect for budget conscious individuals that don't want to compromise quality!

  • 1996-2000 style block, 4 bolt mains
  • 1 piece rear seal nodular iron crankshaft
  • Powdered metal connecting rods
  • Hypereutectic pistons 9.4:1 compression Ratio
  • Hydraulic roller camshaft: Int Lift .414", Exh Lift .428", Int
  • Duration @.050" 191, Exh Duration @ .050" 196, Lobe Centerline-111
  • Vortec cylinder heads - 64cc, 1.94'' intake valve, 1.50'' exhaust valve
  • Electric fuel pump utilization is required as block does not have provision for mechancial fuel pump
  • Also includes: Oil pan, timing cover, valve covers, harmonic balancer

Start-Up / Break-in Procedure (PDF)

GM Crate Engine Warranty

Some parts are not legal for use in California or other states with similar laws/regulations

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