I  have a ready to assemble dart aluminum block  4.125 bore ( just bored and honed with deck plate) 350 main ( just line honed) standard deck. clearanced for 4.0 in stroke just back from machine shop.. Payed 5000 for the block and 1700 for machining would sell for 3200$  call wil at 530-632-2809 or email wilpower2003@yahoo.com

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