Items You Need
LS Gen III/IV
This short block is built for naturally aspirated engines up to 700hp.
Block Information:
- Seasoned OE 1999-2007 GM LM7 5.3L
- Bore/Stroke: 3.903" x 3.622"
- Displacement: 347ci
- Camshaft Bearings: Installed and clocked to OEM position
- Freeze Plugs: Installed and sealed
- Oil Galley Plugs: Installed and sealed
Rotating Assembly:
- Crankshaft: OE reground .010"/.010" 24 tooth reluctor wheel
- Rods: Scat Pro 4340 Forged I Beam Rods with ARP 8740 bolts
- Compression Ratio: 65cc= 10.3:1 67cc= 10.1:1 / 70cc= 9.7:1
- Pistons: Wiseco 2618 Forged flat top -3.2cc
- Rings: Wiseco GFX (alloy steel top ring)
Recommended Components:
- Balancer: Internal balance
- Flexplate/Flywheel: Internal balance
- Head Gasket: .051" thickness or per application
- Oil: 10W40 Non synthetic for first 3000 miles
- Oil Filter: Wix or K&N per application
- Oil Pump: Melling #689-10295 with high pressure spring
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
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Specifications:
How much power can this motor handle?
Will ths work in a 1989 chevy caprice classic brougham
I am working this short block for a 2002 Camaro SS. Do I need to drill and tap any holes in the front of my AC and accessories ?
Does this block fit the 2002 Camaro z28. And if so can I used stock cam oil pan And heads
What is the ring gap? is it boost ready out the cart.
Recommend heads and camshaft?
Motor Vehicles
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Tools:
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Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.