Honest opinion..
Either way, unless it's a punched motor, I see no reason to have 5.7 on it
If you want LT1 and 5.7 on your car, you could always get emblems like I have :

However mine are stainless Steel and are a bit more expensive then free..lol
Like I said tho, the back one looks alright, but the side ones just look out of place.
The Best V8 Stories One Small Block at Time



