Yes it is for a 70 Boss 429 I am restoring. The front end was worked on in the past and had a miss match of bolts. The car had been sitting since the mid 70's. I want to get, what would be consistent for this car. I had a 70 SCJ car sitting here I bought for a number of years and never took note of it before I sold it, built just about the same time. Pretty dumb! I was looking for a couple of the RCS bolts for my 69 dearborn R code that had them, I lost a couple of the hood large washer bolts. I took the car apart back in 91. I found them thanks to Scott at West Coast Classic Cougar. Thanks!