breakin period for ceramic headers?

recharged95 · 02-06-2003, 11:54 PM

Hey guys, I just read this from the holley site on ceramic headers (all types)...

quote:
--------------------------------------------------------------------------------
TIP: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will void all warranties
--------------------------------------------------------------------------------
(source: http://www.holley.com/HiOctn/ProdLi...H/Emission.html )

Is this true? If so, I guess I'll have to transfer on my rusted 1.5" JBA's for the first 1K+ miles on the new stroker engine

--C

Coupe50h · 02-07-2003, 12:55 AM

Wow thats something i never heard of?

I just dont see how any damage would occur, i would think they would benefit the motor begining to end.

ChunkFunky · 02-07-2003, 07:43 AM

I've never heard that either, but I'm guessing all the aseembly lube and wierd stuff that burns off in the first few miles of an engine break in, might hurt the coating from the inside... but I've never heard that before.. I'm sure holley is just covering thier ***
-as

Chevyguy · 02-07-2003, 10:03 AM

They are probably referring to breaking in a FLAT TAPPET cam. This is when you rev the motor at 2000 rpms for the first 20 minutes. That process ends up making the headers glow. And this probably will kill just about any coating that has not had the chance to anneal fully.

That break in process is not required, and should not be performed if you are using a roller cam, like most 5.0's will use.

ChunkFunky · 02-07-2003, 10:07 AM

Lots of cars cruise at 2000 RPM on the highway for alot longer then 20 minutes... why wouldnt it be a problem then?
-as

Coolbreeze · 02-08-2003, 12:19 AM

I had a set BBK coated headers on a new motor(88) during break in and they never had a problem.

Stang_Crazy · 02-08-2003, 01:45 AM

I thought header "glow" was caused by running too lean?

Chevyguy · 02-08-2003, 09:35 AM

Breaking in a cam is done with the car in park or neutral and not moving. Believe me this gets things quite toasty. Most manuals recomend having a water hose handy and a big fan in front of the radiator. The first time I did this my car had OPEN headers, at 10:00 at night

And I clearly saw some glowing. The second time 10 years later, I had iron manifolds.

Cruising at speed is totally different, all the moving air cools the engine much better, plus running under load makes a difference too,

red82gt · 02-08-2003, 03:37 PM

When I put my motor in, it made the headers glow during the first few minutes, they weren't coated though. They had the high temp black paint when they came off the old motor, they've been brown ever since.

Rev · 02-08-2003, 05:03 PM

My nickle plated Tri-Y headers turned blue and have been discolored ever since.

Rev

02-06-2003, 11:54 PM	#1
recharged95 Registered Member Join Date: May 2002 Location: DC-MD-VA Posts: 3	breakin period for ceramic headers? Hey guys, I just read this from the holley site on ceramic headers (all types)... quote: -------------------------------------------------------------------------------- TIP: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will void all warranties -------------------------------------------------------------------------------- (source: http://www.holley.com/HiOctn/ProdLi...H/Emission.html ) Is this true? If so, I guess I'll have to transfer on my rusted 1.5" JBA's for the first 1K+ miles on the new stroker engine --C __________________ 95GT, HEAVY pkg. , usual bolt-ons, heads, intake (explorer), S/C. Daily driver,, 12.8x@114.x on a broken rear diff.

02-07-2003, 12:55 AM	#2
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	Wow thats something i never heard of? I just dont see how any damage would occur, i would think they would benefit the motor begining to end. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

02-07-2003, 07:43 AM	#3
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	I've never heard that either, but I'm guessing all the aseembly lube and wierd stuff that burns off in the first few miles of an engine break in, might hurt the coating from the inside... but I've never heard that before.. I'm sure holley is just covering thier *** -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

02-07-2003, 10:03 AM	#4
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	They are probably referring to breaking in a FLAT TAPPET cam. This is when you rev the motor at 2000 rpms for the first 20 minutes. That process ends up making the headers glow. And this probably will kill just about any coating that has not had the chance to anneal fully. That break in process is not required, and should not be performed if you are using a roller cam, like most 5.0's will use. __________________ 2001 Crown Vic Maurader Airbox/MAF, DR chip Edel IAS shocks Single exhaust :wtf: 93 P-71 Vic interceptor Backup car now 90 5.0 LX Notch SOLD 74 Chevy Laguna type S-3 454 under construction Currently apart undergoing bodywork.

02-07-2003, 10:07 AM	#5
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	Lots of cars cruise at 2000 RPM on the highway for alot longer then 20 minutes... why wouldnt it be a problem then? -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

02-08-2003, 12:19 AM	#6
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	I had a set BBK coated headers on a new motor(88) during break in and they never had a problem. __________________ Mike Blown~AOD'ed~331~ T-top~ 86GT Check out car on my page here ------ > ~~My 86GT T-top ~~

02-08-2003, 01:45 AM	#7
Stang_Crazy It's never clean enough! Join Date: Jan 1999 Location: Shaler, PA Posts: 1,542	I thought header "glow" was caused by running too lean? __________________ ~Dan 2001 SVT Lightning 89' GT : Taking up garage space and waiting for a buyer... Rice Hater's Club - Member #11

02-08-2003, 09:35 AM	#8
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	Breaking in a cam is done with the car in park or neutral and not moving. Believe me this gets things quite toasty. Most manuals recomend having a water hose handy and a big fan in front of the radiator. The first time I did this my car had OPEN headers, at 10:00 at night And I clearly saw some glowing. The second time 10 years later, I had iron manifolds. Cruising at speed is totally different, all the moving air cools the engine much better, plus running under load makes a difference too, __________________ 2001 Crown Vic Maurader Airbox/MAF, DR chip Edel IAS shocks Single exhaust :wtf: 93 P-71 Vic interceptor Backup car now 90 5.0 LX Notch SOLD 74 Chevy Laguna type S-3 454 under construction Currently apart undergoing bodywork.

02-08-2003, 03:37 PM	#9
red82gt Sober voice of Reason Join Date: Nov 1998 Location: Kelowna, B.C., Canada Posts: 1,514	When I put my motor in, it made the headers glow during the first few minutes, they weren't coated though. They had the high temp black paint when they came off the old motor, they've been brown ever since. __________________ 393W: AFR 205's, hydraulic roller, TKO600.

02-08-2003, 05:03 PM	#10
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Turned blue My nickle plated Tri-Y headers turned blue and have been discolored ever since. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

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