I have a 69 belvedere block that seized # 1 piston and will cleanup fine with a bore to 3.5 inches. the engine will be used exclusively for drag racing and will not be highly reved or stressed. this is to be used in my 75 dodge dart torqueflite car. raced in the 1/8 mile-if this were a standard shift, heavier car running 1/4 mile I probably would not consider this overbore as I believe the walls will be about .140 thick after boring-what do you think? thanks-jessie

topic moved to engine

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Lots of the Slant racers run a 3.5 bore. Some have even gone 3.53.

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