A massive thank you to SBI Valvetrain for partnering with us on this video, and for being a reliable source of quality valvetrain components in our shop for over 40 years!
Please follow them on Instagram and check out their website!
  / sbi_valvetrain  
https://www.sbintl.com/

At any one time here at ‪@JAMSIONLINE‬ , the shop is almost guaranteed to have at least one John Deere component in for machine work... In this video, we draw a comparison between the cylinder heads of a 4010 JD, a 3020 gas JD, an early 4020 JD, a late 4020 JD, and a 4230 JD. These are some of the earlier 4 and 6 cylinder John Deere tractor models, and probably the most common job we see here in our machine shop.

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https://www.jimsmachineinc.com


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