hey guys did some more checkingand found the following
block has 3970010also has h 30 6 and the number 37. the heads show conv4 k 12 9 and 8947041 and the letter t. when i bought the truck i was told it was a 350 4bolt with a steele crank flat tops and 202 heads now that i want to change it i need to find out all i can so i know where to start.
thanks again for any help
don