Thanks for the info. The sides are already together. I think I understand how the center hinge goes on between radiator and cowl. I have the center hinge ordered. What size bolts do I need to attach the two halves to the hinge between radiator and cowl?This might be more than what you want to know, but here goes:
The hood sides mate with the hood tops with a continuous piano-type hinge. If you are missing the rod that keeps these together, it's 35 3/8" long and 0.261" diameter. You can purchase a 36" rod in this exact diameter from McMaster Carr for around $6 each plus shipping.
The hood tops fit together with an overlapping chromium plated hinge. Each piece of the hinge is spot welded and punch-swaged to the corresponding hood top. This hinge was reproduced in stainless steel so if you are missing it, you might be able to find one.
The hood is attached to the cowl and the radiator. The top hinge has an extension formed at each end. The top hinge has an extension formed at each end. Two stainless steel brackets (Part No. 50-16726), one on the radiator rod support and the other on the top lip of the cowl, provide sockets for the hinge extension to hold the hood in place and allows for the hinge to pivot and the hood top to fold upwards. The bracket on the radiator rod support is secured with two No. 12-24 x 9/16″ special binding head screws (Part No. 350240-S2). The bracket on the cowl is held in place with two No. 12-24 x 9/16″ special binding head screws (Part No.350222-S2), No. 12 lock washers, and square nuts (Part No. 34128-S2).
I have after market piano hinge that I bolted both halves of the hood. Received my front and rear mounts behind radiator and cowl.. doesn’t appear that the piano hinge protrudes enough to fit into front and back brackets. Am I missing the center rod you mentioned?There should be a chrome piano hinge down the middle that was spot welded to the two top halfs.
The sides are attached with a steel rod that slides into the edges of the tops and sides.
The piano hinge has a round point on each end that inserts into a chrome clip on the cowl and a similar one on the grille. These clips are not the same as passenger vehicles.
The center hinge is available as are the clips for the cowl and grille.
The hood sides also have rubber bumpers at the bottom, where the hood sides meet the inter fender shield. These kits are also available.
Hope this helps.
The attached picture shows the front part of the hood without the stainless steel mounting bracket (which is normally attached to the radiator). The rusty looking tube is the extension of the center hinge which normally fits inside the mounting bracket. There's a similar extension on the other end of the hinge and another bracket mounted to the cowl. These extensions make the center hinge the almost same length as the hood. Hope this helps.