motown small block street blocks world s motown block is without a doubt the ... engine builder friendly cast iron block on the market and because of its ... it s worth up to 20 hp more than other blocks on the market at first glance one of ... more noticeable differences between the world motown and oem chevrolet blocks are the ... at each cylinder.that s because the motown has thicker cylinder walls and the ... to provide required cooling the motown block can be bored to 4.200 with a .250 ... other physical differences between world s motown block and an oem casting ... and rear dry sump scavenging the motown is equipped with nodular iron main caps ... will expand at the same rate as the block promoting superior main bearing life ...
motown small block race motown blocks motown blind tapped head bolt holes indexed ... of high density iron alloy safe to bore block to 4.200 block expanded to facilitate ... for optimum reliability uses stock chevy cam bearing set 1 extra thick walls oem ... water jacket the best all-around small block chevy replacement block money can ... buy motown block wins engine masters challenge the ... rodding magazine which was limited to small block engines was won by veteran ... sherman said that he estimated that his motown cast iron block was worth about 20 ... vertical locking bar roller lifters motown cast iron blocks race prepped world ... a wide assortment of race-prepped motown cast iron blocks operations include ...