Specifications:

• Power: 300 HP @5300 RPM, 356 ft. lbs. of torque @ 3700 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: .443" Intake / .465" exhaust
• Cam Duration @ .050": 214 deg. Intake / 224 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
• Valve Springs:3911068
• Balance: Internal
• Maximum GM Recommended RPM: 5300
• 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.

Engine Includes:

• Fully GM assembled long block
• Stamped steel OE valve covers
• Oil pump, pick-up and oil pan
• Front timing cover
• Timing pointer for use with 2 O'clock mark balancers
• 6 3/4" balancer
• Block is drilled for drivers and/or passenger side oil dipsticks, plugs are included to plug unused dipstick tube hole.

Product Reviews for GM12681429-4 - GM