NOTE: SLP STRONGLY recommends that final assembly and installation be performed by an experienced, professional mechanic.

Oil pump, timing chain, camshaft, pans, plates, and covers not included.Ĥ.000' Ross 2618 forged alloy pistons with -28.50cc dish (includes new rings and full-float pins)ĩ:1 compression ratio (nominal ultimate compression ratio will depend upon heads and gaskets used) Meticulously assembled to OEM tolerances and specifications. Includes new, factory-installed cam bearings Clevite rod and main bearingsġ1.3:1 compression ratio (nominal ultimate compression ratio will depend upon heads and gaskets used)ĭesigned for naturally aspirated applications GM LQ9 iron 6.0 liter block (includes block plugs)Ĥ.000' Eagle 4340 forged steel crankshaft, balanced to rotating assemblyĤ.000' Ross 2618 forged alloy pistons with -6.00cc dish (includes new rings and full-float pins) You won't find a higher-quality, better value LS1 stroker motor anywhere! Best of all, it's sold outright, eliminating the shipping hassles and expenses of core returns. The advantage of this approach is it allows you to pick a combination best for you.Īlthough 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.

This package is sold only in short-block form, minus manifolds, camshaft, oil pump, and other equipment. Our ZL402 is built around a new GM LQ9 Gen III 6.0 liter block, a 4.00' forged steel crank, and 4.00' forged aluminum pistons.

It was the first choice for the experts at Car Craft magazine, who took an off-the-shelf ZL402 stroker motor and produced over 575 horsepower, naturally aspirated.

The ZL402 LS1 based iron stroker short block is loaded with the kind of top-quality hardware found in short blocks costing much more. High and low compression versions are available for the LS1 and LS2 assemblies. We have a sale that covers all of the SLP ZL402 short blocks.

Corvette ls1 cam bearings