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Engine break-in with coated headers? #385523 07/24/09 11:59 PM 07/24/09 11:59 PM
Joined: Dec 2005 Posts: 2,886 Bowling Green KY / Nashville, ... 300by500 OP master
300by500 OP master Joined: Dec 2005 Posts: 2,886 Bowling Green KY / Nashville, ...	I messed up. I should have waited to have my headers coated until after I broke the engine in, now I'm hoping I don't burn it off by being too lean/rich. It's a hydraulic cam, so it'll have to go about 20 minutes at 2,000 RPM. Should I find someone with a break-in stand and borrow an old set of headers instead? https://i.imgur.com/tmuGzov.jpg

Re: Engine break-in with coated headers? [Re: 300by500] #385524 07/25/09 12:06 AM 07/25/09 12:06 AM
Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH WILD BILL Senior Member of the Junior Dragster Club
WILD BILL Senior Member of the Junior Dragster Club Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH	Wouldn't be a bad idea to borrow some headers if you can.

Re: Engine break-in with coated headers? [Re: 300by500] #385525 07/25/09 12:07 AM 07/25/09 12:07 AM
Joined: Jul 2003 Posts: 4,086 The Wet Coast, Canada megajoltman master
megajoltman master Joined: Jul 2003 Posts: 4,086 The Wet Coast, Canada	Burnt mine really good on the dyno till I had the tune right.Glad they were just painted I would try and find some others to use JM 1969 Dart 383/727/D60 CTD Ram 4x4 Mega Cab Procharged 350Z

Re: Engine break-in with coated headers? [Re: 300by500] #385526 07/25/09 12:15 AM 07/25/09 12:15 AM
Joined: Feb 2009 Posts: 123 Jefferson, OR P plumridiculous member
plumridiculous member P Joined: Feb 2009 Posts: 123 Jefferson, OR	Any time you run an engine with the hood open and at fast idle the headers can actually get so hot the can start glowing red. A lot of the problem is with the hood open all the air goes up and out instead of around the headers and out the back. I have broken in engines three times in my challenger with coated headers and used as many fans as i could find and they still look pretty good. This is after i cooked a set years ago.

Re: Engine break-in with coated headers? [Re: 300by500] #385527 07/25/09 12:39 AM 07/25/09 12:39 AM
Joined: Dec 2006 Posts: 3,396 Pa Hot 340 master
Hot 340 master Joined: Dec 2006 Posts: 3,396 Pa	Or just throw an old set of manifolds on it...prolly even turn big block ones upside down to make it simpler.

Re: Engine break-in with coated headers? [Re: Hot 340] #385528 07/25/09 02:39 AM 07/25/09 02:39 AM
Joined: Dec 2006 Posts: 4,647 aotearoa rebel master
rebel master Joined: Dec 2006 Posts: 4,647 aotearoa	why don't you just jet rich???

Re: Engine break-in with coated headers? [Re: 300by500] #385529 07/25/09 06:45 AM 07/25/09 06:45 AM
Joined: Oct 2003 Posts: 11,684 W. Kentucky justinp61 I Live Here
justinp61 I Live Here Joined: Oct 2003 Posts: 11,684 W. Kentucky	I just started my 408 last Saturday with new coated Headmans. Nitroplate in Nashville did the plating. I asked specifically about breaking in a new engine with them and was told as long as it wasn't lean they would be ok. They have about 1 1/2 run time on them with no change in appearence. 5374387-IMG_1844.JPG (25 downloads)

Re: Engine break-in with coated headers? [Re: 300by500] #385530 07/25/09 07:21 AM 07/25/09 07:21 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Was the carb run before, it should be close... most of the time its the timing isnt right during break in... get the timing right first thing

Re: Engine break-in with coated headers? [Re: MR_P_BODY] #385531 07/25/09 08:05 AM 07/25/09 08:05 AM
Joined: Nov 2003 Posts: 10,384 Upstate NY Bigcube I Live Here
Bigcube I Live Here Joined: Nov 2003 Posts: 10,384 Upstate NY	Here's a trick to get the timing correct before you fire it. Take all the plugs out, put them in the wires and lay them on the headers. Then you can crank it over with a timing light and check it before you attempt to fire it. Jim

Re: Engine break-in with coated headers? [Re: Bigcube] #385532 07/25/09 08:15 AM 07/25/09 08:15 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Here's a trick to get the timing correct before you fire it. Take all the plugs out, put them in the wires and lay them on the headers. Then you can crank it over with a timing light and check it before you attempt to fire it. Jim all I do is set the crank at X degrees before then set the leading edge of the rotor to the cap terminal But most guys dont realize that at 2000 rpm and no load it should be more advance than the load type timing

Re: Engine break-in with coated headers? [Re: MR_P_BODY] #385533 07/25/09 08:20 AM 07/25/09 08:20 AM
Joined: Nov 2003 Posts: 10,384 Upstate NY Bigcube I Live Here
Bigcube I Live Here Joined: Nov 2003 Posts: 10,384 Upstate NY	Quote: Quote: Here's a trick to get the timing correct before you fire it. Take all the plugs out, put them in the wires and lay them on the headers. Then you can crank it over with a timing light and check it before you attempt to fire it. Jim all I do is set the crank at X degrees before then set the leading edge of the rotor to the cap terminal But most guys dont realize that at 2000 rpm and no load it should be more advance than the load type timing With a crank trigger I can't change it once the car is running. Because of that I get it set with a light before I attempt to start it.

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