SLP Crate-Engine-Assembly, "ZL402" LQ9 Iron Long Block w/L92 Drive by Wire Package w/51014 (High Compression)
SLP has taken our already great performing ZL402 and made it even better! We've included and installed the SLP/L92 64cc cylinder-head-and-L76 manifold package with a SLP 51014 camshaft, SLP double-row timing chain, SLP Heavy-duty oil pump, new GM lifters and lifter guides, ARP cylinder head studs and MLS head gaskets. Our ZL402 is built around a new GM LQ9 Gen III 6.0 liter GM block, a 4.00" 4340 forged Callies steel crank, and 4.00" 2618 forged SLP/Manley aluminum pistons and 4340 forged SLP/Manley H-Beam Rods.

The advantage of this approach is the new ZL402 long-block ships to you already assembled eliminating the guesswork associated with building an engine. (L76 manifold included, not installed).

Although designed primarily for use in late-model F-Bodies and Corvettes, the ZL402 also makes a great choice for street rods, muscle cars, and trucks. Best of all, it's sold outright, eliminating the shipping hassles and expenses of core returns.

You won't find a higher-quality, better value LS stroker motor anywhere!

NOTE: While placing your order, please specify make and model year that the 402 will be installed in. Be sure to order the correct ZL402 engine with the proper style reluctor wheel for your application (reference chart below). SLP's harmonic balancer/under-drive pulley is required for proper installation (or an equivalent pulley that is properly keyed) a stock balancer/pulley will NOT fit.

SLP/L92 ZL402 Iron Long Block Includes the following:
Built entirely from brand new parts
Sold outright, no cores required!
GM LQ9 iron 6.0 liter block
402-CID displacement
4.000" Callies 4340 forged steel crankshaft, balanced to rotating assembly (included are the SLP windage tray spacers)
4.000" SLP/Manley 2618 forged alloy pistons with -6.00cc dish (includes new Total Seal rings and full-float pins)
6.125" SLP/Manley 4340 forged steel H-beam rods
Includes new, factory-installed cam bearings; Clevite rod and main bearings
SLP 51014 Camshaft .590/.590-inch lift 236/236 duration @ 0.50 112° LSA
SLP/L92 Cylinder Heads
L92 offset GM rocker arms (qty. 8)
L76 GM Intake Manifold w/stock LS2 throttle body and 39lb/hr GM injectors (included, not installed)
SLP 55000 Double-Row Timing Chain
SLP 55001 Heavy-Duty Oil Pump
New GM Lifters and Lifter Guides
ARP Cylinder head studs
MLS Head Gaskets
11:1 compression ratio (nominal)
58 Tooth reluctor wheel
Designed for naturally aspirated applications
Capable of supporting up to 700+ HP
Meticulously assembled by SLP to OEM tolerances and specifications.
Pans, plates, and covers not included.
ZL402 OEM-quality fender 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.

*Shipping costs very: We will contact you with the total*