-------------------------------------------------------------------- NOTES -------------------------------------------------------------------- This is deliberately short. Your theme already outputs og:title, og:description, og:url, og:site_name, twitter:card, twitter:title and twitter:description through the social-meta-tags snippet, and it already outputs a canonical tag. Adding those again would duplicate them, and the browser takes the first one anyway. The two things it does NOT do: 1. There is no robots meta anywhere. Adding max-snippet:-1 and max-image-preview:large    tells Google it may quote the full answer block and show the diagram large. That is    what wins the AI Overview and the image result. 2. social-meta-tags only emits og:image for products and for articles that have a    featured image. Pages get no image at all, so the guide pages currently share as a    bare link. The block above fixes that for the two guide pages. Once the diagram PNG is uploaded to Shopify Files, replace all three instances of REPLACE_WITH_DIAGRAM_CDN_URL with its CDN URL. Until then, leave the second block out. For the touchmark post, set a featured image on the article and the theme handles the og:image on its own. Nothing to add.
GM engine code single gang stamp for engine pad - CNC machined restoration stamp for 1960s–1970s GM / Chevrolet - Made in USA by RestoStamps

GM engine code single gang stamp for engine pad

  • Sale
  • $550.00

Restore the original factory stampings on your 1960s–1970s GM / Chevrolet Chevy, Pontiac, Olds, Buick V8 with this precision stamping stamp. Each stamp is CNC-machined in the USA from hardened tool steel to match the original factory font — critical for frame-off restorations, numbers-matching builds, and show-quality accuracy.

These stamps reproduce the markings found on the engine pad of your GM / Chevrolet. The font has been carefully studied from original components to match character shapes and proportions.

⚡ Important Notes

Gang stamp = all characters on one stamp for single-strike alignment. Custom made — allow 4–5 weeks after drawing approval.

📋 Product Notes & Details

GM Partial Code stamps are found on most ,if not all, early Chevy V8s. Typically the first set of numbers from left to right on the engine pad.

The Engine code stamps are the larger stamps on the same pad ,To completely stamp the engine both engine code and partial stamps are needed. (see other listing, GM engine stamp | Engine code)

This stamp will be a single stamp, with the same font and numbers that you need. Please take a photo before you take your engine to the machine shop so we can ensure accuracy.

Usually 7 characters long.

🇺🇸

Made in USA

CNC-machined tool steel

♾️

Lifetime Warranty

Built to last forever

🏁

Factory-Correct Font

Matched to original

💡 Need Help or Have Questions?

Contact us — we help restorers and makers every day and are happy to walk you through your project.

All RestoStamps products are made to order in the USA from hardened tool steel. Stamps mark hardened and soft metals alike. Typical lead time is 1–2 weeks. Lifetime warranty included on every stamp.