Edelbrock E-CNC LS3 cylinder heads (#61319) feature altered valve angles and locations, spark plug location, and valve sizes along with all-new high flow ports and chambers. The result is a versatile, high port velocity cylinder head that is an excellent choice for road or track LS1, LS2 and LS3 engines.

Despite the geometric revisions, stock LS3 rocker arms and 69cc chamber size are retained. The Edelbrock E-CNC LS3 cylinder heads utilise a valve size and location, allowing it to fit within LS1 3.890in bore engines, but leaving it un-shrouded on larger bore LS2 and LS3 engines. These cylinder heads are for use with both four-bolt and six-bolt per cylinder (LSX) engine blocks. In testing, these cylinder heads flowed 340 cfm, and outperformed the stock LS3 cylinder head by 20bhp on a 500+bhp engine.

Edelbrock E-CNC cylinder heads are fully CNC-ported and feature premium valve train components throughout for long-term durability. Extra thick deck, interlocking valve seats, 0.100in longer than stock valves, factory angle milled deck, and extra thick port walls are some of the race-inspired features that set this cylinder head apart from the competition.

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