I purchased a strap kit for my 455 Olds -caps #2,3 and 4.
I was advised by the supplier that I need to shave 0.500" (12.7mm) of the caps to fit them under the oil pan.
After checking the caps and straps I found that I only needed to machine 0.196" (5mm) of to fit the straps and studs to clear the pan.
Do I need to take off 0.500" or must I try and keep as much of the original material on the cap.
I also need to modify the oil pump shield to fit. Is this item crucial?(see pic of shield)
Thanks in advance.