The ED46720 LS3 long block is a pared down version of Edelbrock’s 702hp supercharged LS3 crate engine. This long block is built using some of the best components available. The foundation is a brand new GM, aluminum, LS3 block which is then paired with a forged and balanced Manley crankshaft, forged Manley H-Beam connecting rods and Manley forged aluminum pistons. The finished product is a 416c.i.d. LS3 stroker with 4.065” Bore and 4” Stoke. This long block is the ideal foundation for any modern performance build. Its compact design allows for a seamless swap into most platforms; eliminating the need for modifications to your engine bay or hood.
Displacement: 416 CID, 6.8L
Bore x Stroke: 4.000” x 4.065”
Compression Ratio: 9.5:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps.
Crankshaft: Forged 4340
Connecting Rods: Manley Forged H-Beam
Pistons: Manley Forged Aluminum -18cc
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .629” Intake / .656” exhaust
Cam Duration @ .050”: 215 deg. Intake / 247 deg. Exhaust
Lobe Separation: 121
Cylinder Heads: Stock GM LS3.
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Maximum Recommended RPM: 6600
• Fully Edelbrock assembled long block
• Oil pump, pick-up and oil pan
• Harmonic Balancer
• Front timing cover
• Black Powder Coated Valve Covers
• Oil Filter
• Passenger Side RH Oil Dipstick and Tube
Edelbrock limited 2 year / Unlimited mile parts & labor warranty. Click on Document tab above for full details.
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