Yella Terra hasn't responded to my asking them directly twice now over the last month (nice Customer Service, huh?) so I'm turning to you guys.

Which part # fits out truck engines? In my case.....A LR4 (the 4.8). I'm guessing that any of them fit the same as they fit LS1s? Just find it odd that YT doesn't list the truck engines in their application charts. Yella Terra - Browse all product categories

 

Is this for your 2002 ECSB? Are you running cathedral port heads?

Do you want 1.7 or 1.8 ratio, and do you want the adjustables?

 

Yes for the 2002. 100% stock engine except for the Volant CAI. 917 heads iirc.

Probably get the non-adjustables, but out of the 3 categories on the page I linked to above, it is interesting that they give 2 different part #s for the adjustables yet the engine list is identical. Only 1 list for the Platinum Twin Shaft & for the non-adjustables only 1 part # has an engine list & the other is blank. The whole list ends up as very confusing & not very informative.

 

I sent you a PM.

You would need part number 6645 or 6646 depending on which ratio you want.

 

Hey Roger do you have any pictures of these installed?

 

i have the 1.8ultralites #yt6646 on my 2012 5.3. i got them at scoggin dickie for $419.00 shipped to my door.

 

How'd you get them for that price shipped? Online shows $439.95 which I assume would have shipping on top of that price.
https://sdparts.com/details/yella-terra/yt6646