Posted By: Badge
Question about heat crossover on a 360 - 04/24/13 09:54 PM
I am new to small block Mopars and need some advice. I have attached a link to a photo of the 360 I am taking apart. It has a Mopar high rise single plane intake. Part of what I assume is a heat crossover port on each cylinder head is exposed and full of debris. Is this OK? Also, this intake has no coolant crossover at the rear. Is this OK? Thanks
ttp://i17.photobucket.com/albums/b65/Badge01/001-2_zpsb07fbeb5.jpg
Posted By: Badge
Re: Question about heat crossover on a 360 - 04/24/13 10:30 PM
Thanks Robert. Once I clean them out, how do I cover them? This manifold does not do the job.
Posted By: 3hundred
Re: Question about heat crossover on a 360 - 04/24/13 10:34 PM
Oh, finally found the picture. Never seen a manifold which covers that portion of the head, don't worry about it unless you just want to clean it. I thought we were talking about the crossover proper.
Robert
Posted By: Supercuda
Re: Question about heat crossover on a 360 - 04/24/13 11:03 PM
Not sure about that rear coolant cross over, my 87 Diplomat never had one. Maybe it was an EFI thing in trucks?
If the small gap shown in the picture above is where your debris is, then that's not uncommon, you can clean it out if you want, but it tends to collect stuff there anyway. It's not connected to anything. If it's the actual passageway in the intake, then you ought to clean it out, even if you plant to run an intake gasket without an opening for that passageway.
Posted By: Badge
Re: Question about heat crossover on a 360 - 04/24/13 11:20 PM
Thank you for the info. I thought I best ask.
Posted By: MoparforLife
Re: Question about heat crossover on a 360 - 04/25/13 01:41 AM
The horse shoe shaped opening in the head around the heat cross over port is there to serve as an open air dam of sorts to break up with outside air the heat build up between adjacent exhaust ports and the hot heat crossover .
