370 LQ9 Long Block
This 370ci LQ9 Long Block utilizes LS3 cylinder heads to provide extra breathing capacity. The rectangular intake ports provide additional volume and flow in the mid and upper RPM ranges. The reconditioned 6.0L iron block houses a stock crank with new forged steel connecting rods and the latest in forged piston technology. Intake manifold and valve covers are available as add-ons to tailor the long block to your needs.
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|Torque:||450+ (varies with cam)|
|Bore/Stroke:||4.030 x 3.622|
|Fuel Type:||Premium Pump Gas|
|Block:||Iron 6.0L, Reconditioned|
|Crankshaft:||Reconditioned OEM (58x)|
|Rods:||4340 Forged I-Beam|
|Pistons:||4032 Forged Aluminum|
|Heads:||Aluminum LS3, As Cast|
|Valves:||2.165 / 1.600|
|Rocker Arms:||Steel / Roller Trunion Upgrade|
|Oil Pan:||Chevy Performance Muscle Car|
|Valve Covers:||Not Included|
|Power Adder:||Not Included|
|Fuel Delivery:||Not Included|
Dyno testing not included in long block price. Here at Prestige Motorsports, our “Dyno Promise” means that we dyno test every engine we build to verify the quality of our work, the integrity of each component, and the reliability of every engine we construct. Then, we deliver the dyno results for your project directly to you, the customer. Hours for dyno testing will be calculated with the purchase of the fuel and ignition group per engine order.
Engines will produce +/- 2% of advertised power at the flywheel. Advertised power levels are achieved using an electric water pump and specific induction and exhaust systems. Power will vary after pulley systems are installed or if changes are made to the induction or exhaust system (e.g. camshaft, cylinder head, compression, intake manifold, exhaust headers, air filters, etc.). Chassis dyno results measure power at the wheels and only calculate flywheel horsepower. Wheel horsepower is affected by a variety of vehicle-specific criteria including driveline design, body and chassis flex, air intake location, etc. Therefore, calculating flywheel horsepower from wheel horsepower is not an accurate representation of actual flywheel horsepower.