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Engine Design and Racing Evolution

2:30
52:58
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At 2:30 in

The Ford 427 SOHC: Through The Eyes of Legendary Engine Builder Ed Pink (His LAST Engine Build)

What happens here

Ed Pink elaborates on the historical context of the Ford 427 SOHC engine. He explains that the engine was originally designed for NASCAR, but rules prevented its use due to its overhead cam design, favoring the Chrysler Hemi. Ford then decided to repurpose the SOHC for drag racing. Ed Pink discusses the challenges of adapting the engine for drag racing, noting its complex chain-driven overhead camshafts, which made between-round adjustments difficult compared to the simpler pushrod designs of the Chrysler 392 and 426 Hemis. He shows a diagram illustrating the intricate valve train drive of the SOHC.

Goal: Explain the origins and initial racing context of the Ford SOHC engine and its competition with Chrysler.

Tools and materials

  • Chrysler Hemi Engine Chrysler — Contextual comparison for racing dominance
  • Ford 427 SOHC Engine Diagram Ford — Visual aid to explain the engine's internal workings, specifically the valve train drive

What they say

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downside to the camera is there was a very labor-intensive engine to work on and you know these guys are pulling the engines apart between rounds and with that would be really hard to do because of the chain and setting the cams we're on a 392 Chrysler you can take the heads off take the Pistons out put new pistons in heads and all that and you know you don't you don't touch your hand oh still working well well I help people yeah right Ed's the quarterback of this whole video and he thought to better understand the 427 single overhead cam Ford that we needed to know some of the back story on the Chrysler and the hemis to understand the importance of the camera when drag racing first started the Chrysler Hemi was the engine already okay there are a few guys who run small block Chevys with superchargers and there's a couple guys that ran big block Chevys when the 426 came out it took a little work to get it really to be better than a 392. it should have been better than the 392 to start with because it started out at 426 inches but there were some things about it that would come different than the 392 and one of the things which I showed ahead the 392 had a small combustion chamber the 426 had a huge combustion chain so consequently one of the major things that that we came across was the fact that the amount of sparkly did you run with the 392 versus the 426 or night and day 392 if I'm not mistaken the cc's in the combustion chamber of the head was like a hundred and on the 426 it was 175 a lot more yeah so consequently spark plug from the Piston is a long ways away it ended up the 426 took a lot more sparkly some guys like Garlits what he did he just started cranking sparkly dead until it quit running good with me being in the engine business I had to take more of a scientific approach to it rather than just throw a sparkly to them because I'm dealing with customers that they're paying for their stuff

Auto-generated from the video audio.