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brand new 350 sportsman bowtie gm block part# in gm book is 12480157 350 main 400 bore etc also brand new 18 degree brodix heads #18stdcu869 titanium and s/s vavles and springs an retainers with gm intake#24502481 block $2200 plus ship heads and intake 2500 plus ship again all new never had a bolt to them