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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 ... 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 ... powerplants cylinder heads and blocks are now designed using state-ofthe-art ...