The ultimate street / strip LS1/ LS6 cylinder head, MTI RACINGs 240cc for 4" Bore or larger. Fully CNC Ported and as used in our Stage II Extreme Engine Upgrades. Works great on 427 c.i. and 454 c.i with Fast Intakes.

Requires The use of 1999-later center bolt valve covers * All accessory holes are pre-drilled & tapped * Sold In Pairs

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