Originally Posted by TrueStreetMotorSports.com
you could build this motor for about $4500-$5000 as a 331,347,or a 363. The block and internals would be good for 1300fwhp.
If I was in your shoes I would build a bigger motor since you need everything and it will not cost more. Dart block 351 stroked to a 430-450 would a average set of heads would make 530+RWHP and a 100+ more RWTQ and not cost much or any more than to build a small 302 Based motor.
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Since he is starting from scratch it is easy to go that route. Me I will stay 302 based since everything I have is setup for it and I would spend a fortune converting over.