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motown small blockstory the world products street continued ... of the warhawk® line of replacement blocks and cylinder heads for gm s ls1/ls7 and ... and racers to create an ls-series block that has many important design features ... you won t find in the oem block plus two cylinder heads a 12° ls7x ... ° high performance replacement for the ls1 without question world s warhawk® ... to its roots with the venerable small block chevy and introduced the motown line of ... cast iron and aluminum blocks and heads most recently world has ... developed a superior 23° head for gm vortec 215cc intakes and a ... s generation of powerful big-inch small blocks and there are more new developments on ... as a primary manufacturer of engine blocks cylinder heads and intakes world is ... such impressive horsepower and torque numbers and be totally reliable the secret is ...