"Torque, its all about the torque. Effortless grunt, power everywhere with great manners and a stock look. A truly W427 crushing experience!"

The G4S-S440 Stroker package is a comprehensive upgrade that starts with our trained technicians designing and building you a new stroker engine package to 383ci (LS1) or 402ci (LS2, L76), once completed the new engine is fitted to your vehicle and we complete a custom tune your vehicle’s ECU on the dyno, utilizing the latest tuning software to maximize the power and torque of your new engine. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing you vehicles performance and driveability. This is all completed in approximately 10 days and at the end of this upgrade we will provide you with a dyno graph detailing the power & torque increase of your vehicle.

This package is for customers who want to keep stock appearance under the hood for a variety of reasons including insurance, law enforcement and factory service issues. Other than a slightly aggressive idle it is impossible to tell the difference from a standard engine externally, except when you drive it of course if you are after a serious increase in torque then the G4S Stroker package might just be the upgrade for you!

Package Includes:

• 1 x ECU – Flash scan reprogram – MAFLESS tune
• 2 x MLS head gaskets
• 1 x ARP high performance head bolt kit
• 1 x HPF high performance camshaft (selected to suit customers requirements)
• 1 x HPF performance matched valve springs
• 8 x Forged pistons
• 1 x 4″ Stroker crankshaft
• 8 x Steel conrods
• 1 x Double row timing chain
• 1 x 25% underdriven crank pulley and belts
• 1 x Set of high performance race bearings
• 1 x high performance seal and gasket set
• 6 x litres of Castrol oil and 1 x Genuine oil filter
• 5 x litres of genuine coolant
• 1 x Before and after dyno graph
• 1 x Machining & blue printing
• 8 x Performance spark plugs
• 1 x Labor to remove & refit engine, all surrounding ancillary’s & test

Options:

• 1 x Set of Higgins CNC ported cylinder heads
  Get the most out of your stroker and cam package with a set of Higgins modified factory heads – Add $1,850

Please note:

This package requires exhaust & intake upgrade.

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