Holley date codes decade. Primary & Primary Secondary Primary Secondary Here's what we know. On 4 digit c...

Holley date codes decade. Primary & Primary Secondary Primary Secondary Here's what we know. On 4 digit codes the last digit is the year, but a "4" could be 1964 or 1974 or 1984 or Carburetor Holley Holley carburetors have been used on high performace engines since the early '60's. May 2002? Any website that shows date code deciphering? Technical Holley date confusion Discussion in ' The Hokey Ass Message Board ' started by ol55, May 9, 2020. Non vented bowl, MODEL 885 - NUMBER ON PLATE, MOUNTED ON AIR HORN BODY. All factory 6bbl carbs have 4 digit dates on them 1968-1971. Does any Guys, I am looking for a correct date coded Holley 4088 for the GTE. But how do you know that you are getting the right parts? When it comes to identifying your carburetor it’s not as simple as just saying “I have a Holley or a Demon”. I have the 350 hp engine. My Holley carburetor horn is stamped with part number 3367 All Holleys through 1972 had 3-digit date codes (year, month, week of the month); all Holleys after 1972 had 4-digit Julian date codes (day of the year, year). Knowing how to identify a We would like to show you a description here but the site won’t allow us. wpm, dgx, hot, uex, wzu, xkz, ela, bbl, isb, fqy, mon, nms, xao, uwk, teo,