CHRIS CRAFT COMMANDER FORUM ® .......A photo-intensive technical reference file and ongoing newsletter regarding the original fiberglass Chris-Craft Commander series. This is an independent not-for-profit and non-commercial web site, not affiliated with the Chris Craft Commander Club ~~ or ~~ Chris-Craft Corporation. Our mission here is to "have fun and share information" about the Commander series (and those associated fiberglass boats on the Chris-Craft family tree) for your individual personal use, and by doing so help promote the good name of Chris-Craft, and help preserve, restore, and appreciate Chris-Craft boats. The main reference feature is the ever expanding MASTER INDEX File which contains what we believe to be the world's largest collection of documentation photos and technical information on the Chris-Craft Commander line of boats, (like these original brochure scans, featuring the iconic first 38 Commander styled by Fred Hudson, and many of the great Dick Avery renditions that followed) , (a huge collection of Chris-Craft 427 tuning and specification information), and a few words about how to use the forum.

We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common ! Just start by posting a note introducing yourself to the group, that's all it takes here (we don't ask for or retain any personal information here, because our intention is to just "have fun and share information".

This forum is registered as

  << Previous Topic | Next Topic >>  

Copper Pipes 2.5"

March 27 2018 at 10:50 AM

Marco  (Login Mardam)

Hello Everybody,
how are you doin'?

I'm still struggling to find a suitable engine / trans / V-Drive for my XK19 but I WANT to install a V-Drive for sure so I'm searching for various ancillaries.

For example I'm looking for the 2"5/8 copper pipes (nominal size 2"1/2) that run port and starboard from the bulkhead to the transom but I've found various thiknesses, which one I should buy? Type K, L or M?

Thanks a lot!!!


 Respond to this message   
(no login)

Chris-Craft copper exhaust

April 6 2018, 12:30 PM 

Hey sorry for the delay, I've been out of town and have had a lot of issues to tend to lately.

My recent use of copper in my 1966 Sea Skiff repower project used hard copper pipe that could not be bent, so I used fittings to accommplish what I needed, and the fittings were roughed up with sandpaper, flux was used, and they were sealed with sliver solder, with a safety screw of stainless steel put in to be sure they never moved out of place. I found the physical dimensions of copper available today does not match up with the dimensions Chris-Craft used in the past, so be careful if you are planning on using chrome hardware around the copper pipe at the transom because the new stuff may not fit with the old hardware. You could always use a section of exhaust hose to transition from one size to another if it was a close match.

It is my understanding that K,L,M, ACR & DWV are available in hard. K,L & ACR are available in soft.

Since the original copper exhaust on a v-drive boat is actually bent with a big curve, exiting the motor toward the front of the boat and then curving back to exit out the transom, I would think "soft" would be the best choice if you were going to have someone put a curve in one for you. The designations also have to do with thickness of the pipe, and I would probably go on the heavy side if it were me.

Good luck on that, let us know if you need any details.


 Respond to this message   

(Login Mardam)

Thanks a lot Paul! You're always very kind!

April 16 2018, 9:03 AM 

Your precious advice will be useful very soon.
I think I've seen many engines use some rubber hose to accomplish the curve behind the bulkhead and it's what I'd go for, too much of a trouble finding someone to bend the pipes for me...

Last week I have received the new dashboard (Thanks Dan!), Taco aluminum rubrail, formica sheeting and I'm going to work on the boat soon...
As far as copper pipes I've found a couple of genuine trim rings for the exit on the transom that have a 2 5/8 bore, I'll have them rechromed soon...

[url][img][linked image][/img][/url]
[url][img][linked image][/img][/url]

Thanks again and have a nice day,


 Respond to this message   
  << Previous Topic | Next Topic >>  

Contact the Chris Craft Commander Forum

©2005, ©2006, ©2007, ©2008, ©2009, ©2010, ©2010, ©2011, ©2012, ©2013, ©2014, ©2015, ©2016, ©2017, ©2018, Chris-Craft Commander Forum, Inc., ®, also known as and the Chris Craft Commander Forum, Inc.; Information and intellectual property on this not-for-profit non-commercial site may be copied for individual personal use, but any other reproduction or use requires written approval. Any entity who mines this site for names, material, or their other commercial/financial benefit in any way is subject to copyright and intellectual property law; the integrity of this site will be aggressively protected. The material here is for individual personal use and is not to be otherwise used or reproduced. Chris Craft is a registered trademark of Chris-Craft. Neither Chris-Craft nor any subsidiaries of Chris-Craft shall bear any responsibility for the content, comments, or advertising. Chris-Craft Commander Forum, Inc., is independent from Chris-Craft Corporation, and not affiliated with the Chris-Craft Commander Club in any way; it is an independent educational-based not-for-profit entity that is intended to share free information and have fun. Copyright/trademark/sales mark infringements are not intended, or implied.