Hey guys. I'm new here , thank you for the add. 5 months ago I purchased a 97 sierra shortbed k1500 with 120,000 miles. The seller, a kid I went to high school with told me it had a 350 5.7, so I took his word for it. But recent events have me questioning that, and I'm thinking it could be a 305 which would be a big disappointment to me, as I am planning on towing a 6x12 trailer for landscaping. I stumbled upon thisninformatuon after finding literally every single receipt and service recordrecords at the bottom of the glove box which read 5.0, also my vin comes back as coming stock with a 5.0, not sure if that's completely accurate though. Been looking for casting numbers but the one I've found just over the oil filter near the bell housing seems unlegable. I have taken a photo of it best I could after I cleaned the area. Can anybody give me some advice on where I should go from here. I'm assuming if it is a 5.7, it would have been swapped, which given the age, I'm assuming is entirely possible. I will upload photos of the truck and the numbers I could find. Please let me know where I should go from here. I bit discouraged, and dissapointed. Figured you were the go to guys for help. Thank you in advance.
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