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If your talking about using a 4.500 stroke crank in a stock 440 block and race it when do you expect that grenade to explode? I wouldn't put that large of a load on the 440 main webs, even with a "girdle" and block filler Remember the designed strength of the B and RB type blocks is in the oil pan rail supports and block skirt, the main webs are not intended or designed to hold much above 700 HP. Sticking a set of main studs and using the oil pan bolts to hold a girdle on the bottom is not my idea of a good design, more like a poor bandiad
Save your money and buy a good block to start with



Well , i do not run that stroker but I know of 2 that run very well deep into 9,30 with
410 geared cars , 3000# with pro comp full port max wedge heads,,
have been together for several years with just normal issues in refreshing after 2 years of campaining
How ever,,
I have seen those same cars run 9.40 with 500 stroked motors and stock out of
the box RPM heads

Finding the right combo , right mix of parts
Being able to tune a combo, tires gear converter
Is an age ole racers search as much as the fountain of
youth