2001年8月30日 · A925 4-Valve DOHC Hemi After getting smashed by the 426 Hemi, Ford when back and came up with the over 600-hp 427 SOHC "Cammer". The guys at Mopar caught wind of this plan and started to work on something to counter with -- the DOHC 426 Hemi. The powers to be at NASCAR did away with these engines,

2019年4月1日 · So, they went into development of the A-925 Hemi prototype aka DOHC Hemi. The engine could use a stock 426 Hemi block, but the block that was used had none of the machining done for the...

2001年8月30日 · So, they went into development of the A-925 Hemi prototype aka DOHC Hemi. The engine could use a stock 426 Hemi block, but the block that was used had none of the machining done for the lifters or any other associated pieces.

2020年8月7日 · anybody ever heard of A925 DOHC 426 HEMI? Nascar mid 60s. I think there was an article in mopar muscle years ago on this engine. Young Mopar fan bringing the A-925 to life. I know I'm right.... Many prototype back in the crazy 60's. IIRC it was a well done bluff, but had engineering potential. UTG is the man.

2003年2月10日 · The basic concept was adding the Hemi heads to the RB 426 engine. It made its debut at the 1964 Daytona 500 (and was very successful). A925. Ford came out with their 427 SOHC for NASCAR. Chrysler did not want to be in the shadow, so they developed a 1964 426 race Hemi prototype with 4 valves per cylinder and DOHC.

2022年8月18日 · Gen-II 426 engines were the first to be officially called Hemis, and Chrysler trademarked the name. The 426 Hemi was nicknamed the “elephant engine” due to its high horsepower, heavy weight, and large physical dimensions. With a deck height of 10.720 inches and 4.800-inch bore spacing, it was the biggest engine in racing at the time.

2014年7月23日 · So i read about project A925 and how nascar outlawed over head valve engines, but how cool woult this be, and how about the power and reliability it would have, what even happened to the prototype engine?

2016年1月29日 · Both A-925 and the 427 Cammer were outright banned, as well as the regular Race Hemi for the 1965 season. Which leads us to this eBay listing, for one A-925 Hemi head.

2022年11月26日 · Many people call it the A-925 or the “Doomsday Machine or Hemi.” The prototype engine used an actual 426 Hemi block. Each aluminum head featured dual overhead cams for a total of four camshafts. Overhead cams removed the bulky and horsepower robbing valvetrain components like the rocker arms and long pushrods.

2017年10月17日 · An article by Tom Shaw in Mopar Muscle said the DOHC Hemi project was coded A-925, and that it had an unusued contingency plan of using two cams between the heads, with four pushrod-activated valves on each cylinder …