LQ9 427ci / 530HP-590ft/lbs Turn Key

LQ9 427ci / 530HP-590ft/lbs Turn Key


We developed this engine to work in heavier vehicles that need big torque numbers to get moving and we hit the nail on the head. Making 590 ft-lbs of torque this engine pulls strong on and off road and will run on pump fuel.

Peak Horsepower: 530 bhp @ 5600 rpm

Peak Torque: 590lb/ft @ 4500 rpm

Operating Range: 1200 - 5600 rpm

Compression Ratio: 10:1

Required Fuel: 91+ Octane Pump Gasoline

Base Price:

Block: New GM LQ9 cast iron block. Decked, bored 4.070”, honed with torque plates and pressure washed. New Durabond cam bearing installed. ARP main studs, line honed

Crank: Callies 4340 forged steel, 4.100” stroke, internal balanced front and rear

Rods: Manley 4340 forged H-beam, 6.125” length, floating pin, ARP 2000 rod bolts.

Pistons: Manley 2618 forged pistons with anti friction coating.

Rings: Mahle low drag plasma rings.

Bearings: Clevite H-series main and rod bearings

Lifters: Comp Cams Hydraulic Roller

Pushrods: Comp Cams Magnum Series

Valve Spring Kit: Double polished springs, titanium retainers, hardened spring seats, hardened locks and Viton valve seals.

Rocker Arms: GM 1.7 ratio

Timing Set: Manley billet double roller, 9 key way bottom gear and Torrington bearing

Oil Delivery: Melling Select Performance

Gasket Set: Cometic MLS head gaskets

Head Bolts: ARP Performance hex head.

Covers: GM oil pan (to match your car), timing cover, rear seal housing, lifter valley housing and valve covers.

Intake System: GM L76 intake, 39lb injectors, fuel rails, Fast 92mm throttle body.

Damper: ATI Performance products

Cam:

Manufacturer:
Comp Cams

Type:
Hydraulic Roller

Operating Range:
1200-5600 RPM

Idle Quality:
Good

Duration:
Intake: 216˚@ .050”
Exhaust: 224˚@ .050”

Lift:
Intake: .570”
Exhaust: .585”

Lobe Separation:
114˚

Heads:

Type:
GM L92 Aluminum

Combustion Chamber:
62cc

Flow: 340CFM @ .600”

Intake Runner:
227 cc

Intake Valves:
Manley stainless steel 2.16”

Exhaust Valves:
Manley stainless steel 1.615”

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Item Location: HUDSON, NH Get Directions To This City

Instructions for buyer:  Buyer is responsible for shipping cost.

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