Originally Posted by jumbo2
Rod bolts have what looks like a capital I on the head , it's the out line of the I
'96- up Vortec type OEM rods and bolts. I have an identical set out of a '97 5.7L Vortec L31 engine out in my shop.
Are you sure the pistons are forged? Are they stamped w/a part number and/or an oversize ID on the tops?