World's fastest Model A "sort of"

[67Dart273]

This is incredible. One off DOHC conversion, 3 valve / cylinder, Top longintudinal girdle to hold the block together, and 5 bolt main--original block is 3 bolt main, so two added mains.

 

[tinman2]

Alrighty then! Back in 1974, I bought this bad-*** 65 Ford Falcon 289 4speed that had quite the reputation locally. I got to be good friends with the builder. We had a nearby engine machine shop where lots of racers got their machine work done. The builder had told me that my connecting rods came from a very small displacement (like 3 liters) Indy V8 Ford. The heads from that engine were sitting behind a door in one of the machine shop rooms. I only saw them once but the combustion chambers stuck down in the cylinders just like in this video. Within the last few years, I have tried to find info about that setup but haven't found anything. I have even second guessed what I remember. And now, here is that same design in use.

 

[Projectile Dart]

I saw this episode last night, very entertaining. Reminded me of an engine I saw on an engine masters competition (before the YouTube show) where I think a SBM was used (maybe poly 318?) where they sunk the head into the block in the same way. It's one of the most ingenious things I've seen to an engine
I think this guy did it earlier and much more complicated with custom heads but I love how they modified the block in every way possible to get the most out of it

 

[67Dart273]

I saw this episode last night, very entertaining. Reminded me of an engine I saw on an engine masters competition (before the YouTube show) where I think a SBM was used (maybe poly 318?) where they sunk the head into the block in the same way. It's one of the most ingenious things I've seen to an engine
I think this guy did it earlier and much more complicated with custom heads but I love how they modified the block in every way possible to get the most out of it

I don't know if you caught it, but the main reason they are doing the sunken chambers is that the race body changed the rules, and the block must maintain stock block height. They wanted shorter rods for better rod/ stroke ratio.

 

[RogerRamRod]

Fastest 1929 Ford Model "A" - YouTube

 

[Projectile Dart]

I don't know if you caught it, but the main reason they are doing the sunken chambers is that the race body changed the rules, and the block must maintain stock block height. They wanted shorter rods for better rod/ stroke ratio.

Yeah I caught that, but the secondary benefit to doing this is being able to make completely custom intake/exhaust runners. He talked about making his ideal short side radius on both sides of the intake