This engine remains our most popular crate engine of all times. This is a great entry level replacement engine for older cars and trucks, and a great basic street rod engine. All of the parts in this engine, including the block, are Brand New!
Power: 250 HP @4300 RPM, 350 ft. lbs. of torque @ 3600 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 8.5:1
Recommended Fuel: 87 Octane
Block: Cast Iron, 2 piece rear seal, 4-bolt main caps.
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Cast Aluminum
Camshaft: Hydraulic Flat Tappet
Cam Lift: .383” Intake / .401” exhaust
Cam Duration @ .050”: 194 deg. Intake / 202 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Cast Iron, 3/8” pressed in rocker studs.
Combustion Chamber: 76cc
Valves: .194” Intake/ 1.50” Exhaust
Rocker Arms: Stamped Steel, 1.5:1 Ratio
Maximum GM Recommended RPM: 5100
Ignition Timing: Base 10 degrees BTDC, 32 degrees total
Cylinder Head Notes: 7 Bolt style Exhaust Flange Standard, 85' and prior intake manifold bolt pattern. Perimeter bolt style Valve Covers. This head is very similar to the old #882 castings from the 1970's.
• Fully GM assembled long block
• Stamped steel OE valve covers
• Oil pump, pick-up and oil pan
• Front timing cover
• 6” & 8” timing pointers for use with 2 O’clock mark balancers
• Block is drilled for drivers and/or passenger side oil dipsticks, plugs are included to plug unused dipstick tube hole.
RPO - LM1, LS9, LT9, 350L, 350Y
1975 - 1985 Chevrolet Pickup (CK1)
1975 - 1985 GMC Pickup (C1)
1975 Chevrolet Blazer (C1)
1975 GMC Jimmy (C1)
1975 Chevrolet Van (G1)
1975 GMC Van (G1)
1978 - 1980 Chevrolet Van (G2,3)
1978 - 1985 GMC Van (G2,3)
1979 - 1985 Chevrolet Blazer (CK1)
1979 - 1985 GMC Jimmy (CK1)
1979 - 1985 GMC Suburban (CK1,2)
1980 - 1985 Chevrolet Van (G1)
1983 - 1985 Chevrolet Caprice Classic (B)
1983 - 1985 Chevrolet Impala (B)
1973 - 1980 Chevrolet Corvette (Y)
1984 - 1985 Pontiac Parisienne (B)
Notes: 4 bolt main caps, two piece rear main seal. Replacement timing pointer tabs p/n 3991435 or 3991436. Includes valve covers, front timing cover, oil pan, new oil pump. Camshaft is 12364051 (327cid/300hp profile). Flat tappet lifters. Machined fuel pump boss.
General Motors limited 3 year / 100,000 parts & labor warranty. Click on Document tab above for full details.
Click on Links below to see more versions of this GM 350 Engine:
Fully Assembled Carb to Pan 350 Engine
350-300HP Crate Engine
Fully Assembled Turnkey 350 Engine with TH350 Transmission Combo Package
GMP-7353 - Engine Completion Kit
Click on Documents Tab for Engine start-up and break-in procedure, Service Parts List and Valve Adjustment procedure.
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