Thread: first 390 build

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Originally Posted by riley1996

Yes I put my heads together my self I will be putting the engine together I built my truck from the ground up and im more of a paint and body man not a mechanic, so I needed one of my good friends to see what my gear ratio so I'm not guessing

It's good not to be guessing when the facts make huge differences in the approach. One thing to consider, you mentioned in an earlier post,

Originally Posted by riley1996:550437

....I'll be running a trans cooler...

Noble, OK sees large seasonal swings in ambient temperature with winter highs below freezing. An uncontrolled tranny cooler piped into your line will likely keep your tranny well below it's design operating temp. The reason that the cooler is in the radiator is to both heat & cool the fluid, not just cool. Loading it when cold can be worse than letting it get a little hot. You're much better off with no external cooler, or if one is needed, using a cooler with a thermostatic fan so that it only pulls air when the fluid is over temp. Just some gray hair advice, and you may choose to ignore it.

Best of luck with your build.

Originally Posted by rspears

It's good not to be guessing when the facts make huge differences in the approach. One thing to consider, you mentioned in an earlier post, Noble, OK sees large seasonal swings in ambient temperature with winter highs below freezing. An uncontrolled tranny cooler piped into your line will likely keep your tranny well below it's design operating temp. The reason that the cooler is in the radiator is to both heat & cool the fluid, not just cool. Loading it when cold can be worse than letting it get a little hot. You're much better off with no external cooler, or if one is needed, using a cooler with a thermostatic fan so that it only pulls air when the fluid is over temp. Just some gray hair advice, and you may choose to ignore it.

Best of luck with your build.

I will look into a controlled temp transmission cooler, you guys know alot more than I do for sure, and it wont let me post a picture from my phone

Originally Posted by riley1996

I will look into a controlled temp transmission cooler, you guys know alot more than I do for sure, and it wont let me post a picture from my phone

Jerry's right about the alternate plumbing of the in-line cooler. Be sure that it's ahead of the radiator cooler and you should be OK, too.
I expect your phone pictures are too big - you'll have to reduce them down to a nominal 1024 max dimension (normal for attaching to e-mail) to post them directly, or post them to a third party host and link images. Here's a link to a description - I'm using SmugMug instead of Photobucket now, more friendly and cost is reasonable - http://www.clubhotrod.com/shop-talk/...es-thread.html

It used to have dual gas tanks but took the one out of the bed it has a little cooler in front of the radiator I expect that the transcooler and It has a towing package but that all the little bell and whistles I got

Originally Posted by riley1996

It used to have dual gas tanks but took the one out of the bed it has a little cooler in front of the radiator I expect that the transcooler and It has a towing package but that all the little bell and whistles I got

Assuming that you're tracing the lines from the tranny & back to this "little cooler" and that your lines don't connect to threaded fittings at the bottom of the radiator to (little cooler in series with in-radiator cooler/HX), IMO you need to replace your radiator with one that has an internal tranny cooler, OR replace that little cooler you have with a HX with temp controlled fan. Your "little cooler in front of the radiator" won't allow your fluid to reach operating temp consistently.

Ok I'm pretty sure I can find one online someone where