Gen III/IV Small Block Engines - Big Displacement Gen III/IV Engines

Among the wilder opportunities is the ERL Performance Superdeck I and II systems, which offer a combination of adding Darton ductile iron sleeves and an aluminum deck that bumps the deck height up to allow building something like an LS2 engine with a 4.20-inch bore and a 4.50-inch stroke displacing 499 ci. This particular photo is of an LS1 block.

Among the wilder opportunities is the ERL Performance Superdeck I and II systems, which of

The ultimate aluminum Gen III/IV block has to be the fully machined billet block with water jackets available through Dart Machinery. Assuming you want to maintain the standard Gen III/IV 4.400 bore spacing, there are plenty of options available in terms of deck height, cylinder liner depth, and cam placement. Don't kid yourself-a Dart CNC billet block is mucho dinero, but it is also custom CNC-machined to your exact specs. Prices vary with the combination, so call Dart if this is a silver bullet with your name on it. You're guaranteed to be the only one in your neighborhood with one.

This is a piston used by Schwartz Extreme Performance with a 4.00-inch stroke crank on a production LS2 block. Schwartz believes the scoring is a result of the longer stroke exposing more of the piston skirt beyond the bottom of the bore.

This is a piston used by Schwartz Extreme Performance with a 4.00-inch stroke crank on a p

By Dale Schwartz

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