For those who want to add serious horsepower to their Camaros, Corvettes, and Firebirds, World Products offers big-inch combinations that feature WARHAWK 15° LS1 or 12° LS7 style heads and the highly regarded WARHAWK aluminum block. These 7 and 8 liter powerhouses can provide even more breathtaking performance thanks to optional CNC head porting!

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Engine Block: Warhawk aluminum
Deck Height: 9.240” (427), 9.800" (454)
Bore/Stroke: 4.125” x 4.000” (427), 4.125" x 4.250" (454)
Main Caps: 4-bolt, cross-bolted billet
Cylinder Heads: Warhawk 15° LS1 235cc aluminum, Warhawk 12° LS7 285cc
Valves: Manley stainless steel
Timing Chain: Double roller
Crankshaft: 4340 Eagle/Scat internally balanced
Connecting Rods: 4340 Eagle/Scat
Pistons: Manley/Mahle
Gaskets: Felpro
Internal Hardware: ARP
Exterior Hardware: Totally Stainless
Oil Pan: Moroso

Compression Ratios
427 LS1 Street: 11.5:1
427 LS7 Street: 11.5:1
454 LS1 Street: 11.5:1
481 LS7 Street: 11.6:1