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We are offering $250.00 off of the SLP LS1 and LS2 402 short block assemblies through July 5th.

The LS1 assembly is available in low and high compression ratios. This ZL402 LS1 based iron stroker short block is loaded with the kind of top-quality hardware found in short blocks costing much more. 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.

SLP's 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.

This package is sold only in short-block form, minus manifolds, camshaft, oil pump, and other equipment. The advantage of this approach is it allows you to pick a combination best for you. We also carry the SLPheads and cams, and we'd be happy to recommend the best combination for you.

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.

The ZL402 LS2-based aluminum short block builds on the success of the original ZL402 iron short block. This new package uses the same race- proven internals as its iron block predecessor but features the all- new LS2 block for weight savings of over 100 pounds compared to an LQ4/LQ9-based engine.

Although designed primarily for use in late-model F-Bodies and Corvettes, the aluminum ZL402 also makes a great choice for most late-model GTOs, street rods, muscle cars, and trucks. Best of all, it's sold outright, without core charges.

Includes:

Built entirely from brand-new parts.
Sold outright, no cores required!
402 CID displacement
GM LS2 aluminum 6.0-liter block (includes block plugs)
4.000" Eagle 4340 forged steel crankshaft, balanced to rotating assembly
4.000" Ross 2618 forged alloy pistons with -6.00cc dish (includes new rings and full-float pins)
11:1 compression ratio (nominal; ultimate compression ratio will depend upon heads and gaskets used)
6.125" Eagle H-beam rods
Includes new, factory-installed cam, rod and main bearings.
Comes with everything required to retrofit into an LS1-equipped car or truck
Designed for naturally aspirated use.
Assembled to OEM tolerances and specifications.
Capable of supporting over 600 hp.
Oil pump, camshaft, pans, and plates not included.
ZL402 badges (pair).

Orders can be placed online or by calling 1-877-4-TBYRNE (1-877-482-9763). Payment for these much be made with a certified back check, money order or Western Union transfer.
 
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