Installing the coyote engine into the Roadster

[cfriedman67]

I have a Coyote gen 3, TKO 600, and the Factory Five supplied headers. I have read previous posts from a few years ago for a what I believe was a gen 2 install. (Probably the same) Can you bolt on the headers before installing the engine? If its not possible what tricks have you used to make it easier? Do I need to remove the studs like outlined in the Factory Five installation instructions?

Appreciate the advice.

Craig

[Railroad]

I would test fit the headers before putting the engine in.
I left the studs in on the passenger side and shortened them on the drivers side and used Ford gaskets. Gen 1 engine.

[Al_C]

I have the FFR shorty headers on my Gen II. I mounted them prior to dropping the engine and everything went in well. I also helped Tony install his Gen III coyote in his car. He has full length headers, so they needed to be installed once the engine was below the upper frame rails. I believe a Gen III block is the same as a Gen II, so with the shorty headers it should be no problem for you.

The only real hard part are the bolts for the rear cylinders, so if you have to install below the rails, do it while the engine is still on a crane and you can move it around.

[edwardb]

X3 what others said. Check the fit before dropping the engine in. Long tube headers definitely cannot go on before going in. I did find it a bit easier to bolt the long tube headers on once the engine is past the frame rails and before all the way on the mounts while still on the crane. Even easier without the engine mounts at that point. Then add the mounts and drop the rest of the way down. Or just put it all the way in and mount the headers. Most of the PS side are pretty easy. DS has several that will stretch your vocabulary. I personally prefer to use all bolts and none of the studs. A personal choice. But for sure several can't be used because they're too long and either hit the footbox or don't leave enough room to get the headers over them. I'm a fan of Remflex gaskets. But lots of others work well too.

No experience with shorty headers. So if that's what you have, what I said may/may not apply. Good luck. It's not too bad, but you'll be glad to see that hunk where it belongs. :cool:

[cfriedman67]

IF using all bolts do you know what size?

[edwardb]

IF using all bolts do you know what size?

For the Gen 2 in my #8674 Roadster, used McMaster 96144A261 Metric Class 12.9 Socket Head Cap Screw M10 Thread, 30mm Long, 1.25mm Pitch. For the Gen 3 in my Coupe, used the bolts that came with the Gas-N headers, but were the same size. I'm pretty confident yours is also M10-1.25, but check to be sure. I've read (but not experienced) that Ford used a different thread size for some. Easy enough to check with a thread gauge and one of the studs. If you don't have one of these, worth its weight in gold. https://www.amazon.com/gp/product/B003FJW0GK/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1. Use it all the time.

[jiriza84641]

I had changed the factory studs to the locking studs grade 8 if I recall the name. Al C is right on point with his response and he assisted with my G3 install. Ed and the others answered the question when to install the headers. you can use other mounting bolts as previously stated. I recommend a test fit of the headers, I used OE Ford metal gaskets with the headers. Also, clean the threads of the bolts that you use along with the block threads just to make sure they go in with no issues.

[cfriedman67]

thanks everyone for the help. Looking forward to getting it installed.

[BradCraig]

DEFINITELY test fit prior to dropping in the engine, I had to massage a few holes on the header flanges to get them to fit. Would have been impossible once engine was installed. After that all went well, a various array of extensions and universals make the job easier. Oh....ratchet wrenches make the job WAY easier. Good luck!