Crate-Engine-Assembly, “ZL427” LS7 770HP Camaro Supercharged Engine w/51018 Cam/1.85 Rockers/Injectors/Boost-a-Pump/Thermostat/Mail-In Tune 58 tooth

The all-new ZL427 Gen IV LS7-based aluminum supercharged long block engine package builds on the phenomenal success of our original ZL402 long-blocks. This new package uses the same race proven internals as our long-block predecessor but features the LS7 block. Designed primarily for use in any late-model GM LS Car/Truck/SUV, it makes a great choice for most street rods/muscle-cars.

Our ZL427 is built around a new GM LS7 7.0L block, a 4.00" stroke SLP/Manley 4340 forged steel crank, 4.125" 2618 forged SLP/Manley aluminum pistons and 4340 forged SLP/Manley H-Beam Rods.

The advantage of this approach is the new ZL427 long-block ships to you already assembled eliminating the guesswork associated with building an engine. (Supercharger included not installed).

You won't find a higher quality, better value LS7 anywhere!

NOTE: Supercharger Package not assembled on engine. Not legal for use on pollution controlled motor vehicles. FOR OFF-ROAD USE ONLY. 770 HP is achieved with SLP Long-Tube Header pkg. # 30215. For Manual Transmission applications, we recommend using SLP’s Dual Clutch Pac and Flywheel Assembly.

ZL427 LS7 Aluminum Long Block Includes the following:

• Built entirely from brand new parts
• Sold outright, no cores required.
• GM LS7 aluminum block
• 427-CID displacement
• 4.000 SLP/Manley 4340 forged steel crankshaft, balanced to rotating assembly
• 4.125" SLP/Manley 2618 forged alloy pistons
• 6.125" SLP/Manley 4340 forged steel H-beam rods
• SLP 427 Camaro Supercharger (w/custom pulley set to produce 10 psi of boost)
• SLP 51018 Camshaft .654/.658-inch lift 214/230 duration @ 0.50 120° LSA
• SLP/LS3 Cylinder Heads
• SLP 1.85 Rockers
• SLP 55004 Double Row Timing Chain Set
• SLP Boost-A-Pump
• SLP 85 lbs/hr Injectors
• SLP 160° Thermostat
• SLP Custom Mail-In Tune
• SLP 55001 Heavy-Duty Oil Pump
• New GM Lifters and Lifter Guides
• Hardened Pushrods
• ARP Cylinder head studs
• MLS Head Gaskets
• 10.82:1 compression ratio (nominal)
• 58 Tooth reluctor wheel
• Meticulously assembled by SLP to OEM tolerances and specifications.
• Pans, plates, and covers not included
• Includes Spacers for oil windage tray
• 770 HP Decals in Red, White, or Black (pair)
• ZL427 Supercharged Badges (pair)
• SLP offers a 1 year warranty (workmanship)

NOTE: SLP STRONGLY recommends that final assembly and installation be performed by an experienced, professional mechanic. Assembly/installation instructions are neither included nor available with this part.

NOTE: NEW SLP Supercharger Kit included (pic shows old supercharger). Updated pic coming soon

Please call (713) 600-8600 for more information and a shipping quote. All engines are shipped in a Heavy-Duty crate, $125.00 additional charge applies.

BEFORE ORDERING PLEASE MAKE SURE OF THE NUMBER OF TEETH ON YOUR RELUCTOR WHEEL