Auction is for one NOS Genuine GM Small Block Starter Brace. Back in the day when most people changed their starters they would toss this brace away. With the torque of these small blocks the starter tends to flex and can cause the teeth on the flywheel to go bad. This brace bolts from the block to the front of the starter to help stop the flex. GM makes at least two different small block starter braces to help you figure out if this one is for you see picture with measurement and as close as I can measure as the crow flies hole center to slot measures 5". I know the other one measures approx 4 1/8" from center to center. You may receive the brace either loose in a brown box, or with a tag wired on, Not in Blue box, those photos are for measurement purposes only. The ebay fitment guide is only a guide so please make sure this is what you need. With all the motor swaps going on it's definitely better to measure and be sure this is the one you need, as I do not want anybody to be unhappy, so please make sure before bidding. When only GM works this is for you! Winning bidder to add $5.00 shipping, with tracking, and insurance. Thank You for looking, and good luck!