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1969 Mopar 440 under valve cover #4519373
09/18/17 11:57 AM
09/18/17 11:57 AM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline OP
440Magnum  Offline OP
Joined: Feb 2009
Posts: 8,776
Texas
I put new cast aluminum valve covers on my 69 440 last week, something I've been wanting to do for ages since the original stamped steel covers flex too much for modern hard silicone gaskets. The close proximity of the exhaust manifolds cooks softer covers and Permatex over time, so they always leak eventually. While I had it open, I took a quick shot of the driver's side rocker assembly. There aren't a lot of miles on the engine since the heads were re-done, but its been about 20 years. Rotella T6 most of the time, with a few fills of M1 0w40 thrown in. As expected, spotless:



Here's the engine with the new covers installed:





'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519376
09/18/17 12:02 PM
09/18/17 12:02 PM
Joined: Apr 2017
Posts: 429
Utah, USA
28oz Offline
28oz  Offline
Joined: Apr 2017
Posts: 429
Utah, USA
Very nice! You aren't kidding about those exhaust manifolds. I'd be paranoid about those cooking a lot of things!


-----------------
1990 Nissan 300zx - Castrol Edge Euro 0W-40
2004 Nissan Quest - Pennzoil Platinum Euro 0W-40
2003 Ford Excursion 7.3 PSD - Mobil 1 TDT 5w-40
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519379
09/18/17 12:07 PM
09/18/17 12:07 PM
Joined: Jan 2005
Posts: 5,664
Charlotte, NC
Oldmoparguy1 Offline
Oldmoparguy1  Offline
Joined: Jan 2005
Posts: 5,664
Charlotte, NC
Very nice! I approve... thumbsup thumbsup


A Randomly Selected Thought For The Day:
If Noah had used Zip, he could have used a smaller boat.
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519382
09/18/17 12:14 PM
09/18/17 12:14 PM
Joined: Jul 2015
Posts: 3,772
MD
AirgunSavant Offline
AirgunSavant  Offline
Joined: Jul 2015
Posts: 3,772
MD
T6 is the bomb- nice ride!

Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519384
09/18/17 12:18 PM
09/18/17 12:18 PM
Joined: Jun 2006
Posts: 370
Texas
Neely97 Offline
Neely97  Offline
Joined: Jun 2006
Posts: 370
Texas
Man does that bring back memories.
Cool meter pegged.


6.7 cummins, Toyota 4 runner
FUMOTO
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519390
09/18/17 12:35 PM
09/18/17 12:35 PM
Joined: Oct 2014
Posts: 1,006
SW Ontario Canada
KGMtech Offline
KGMtech  Offline
Joined: Oct 2014
Posts: 1,006
SW Ontario Canada
Those BB Chrysler engines with the elevated exhaust manifold were always a challenge for me when I was a teenager working in a Chevron station in Vancouver. Leaning over the fender, trying to make a good aim to the oil cap hole was about as stressful as could be! almost always got some small dribble on the manifold and the poor owner had to smell that for at least 5 blocks!


2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL
Re: 1969 Mopar 440 under valve cover [Re: 28oz] #4519418
09/18/17 01:12 PM
09/18/17 01:12 PM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline OP
440Magnum  Offline OP
Joined: Feb 2009
Posts: 8,776
Texas
Originally Posted By: 28oz
Very nice! You aren't kidding about those exhaust manifolds. I'd be paranoid about those cooking a lot of things!


You should see the passenger's side, the angle below doesn't quite do it justice. I actually slipped a piece of header wrap between the manifold and the cover just for some extra insulation. I understand why they did them that way- to get a bigger manifold with smoother curves without getting in the way of the front suspension... but it did have its downsides.



'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519428
09/18/17 01:29 PM
09/18/17 01:29 PM
Joined: May 2009
Posts: 12,192
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,192
N.H, U.S.A.
Used to like 318, 360 and 440 mopar engines and Dodge vans Satellites and Furys.
One of the last jobs I did in the 70's was a head refresh on a 440 wagon (outside in the lot) I recall the intake was heavy, cant recall if it had a splash pan intake gasket. Car ran REAL strong after I redid the top end.

But so did some old lady's 428 Pontiac GP after a new timing chain and a tune up. I wanted to buy that car even though I wasn't a Pontiac fan. Sleeper.
She wouldn't sell AFTER my nice tune up frown


2014 Nissan Rogue S CVT, OC#9 41392mi-QSUD10W30 + M110A CHAMP Filter; 2017 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: 1969 Mopar 440 under valve cover [Re: KGMtech] #4519430
09/18/17 01:32 PM
09/18/17 01:32 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Originally Posted By: KGMtech
Those BB Chrysler engines with the elevated exhaust manifold were always a challenge for me when I was a teenager working in a Chevron station in Vancouver. Leaning over the fender, trying to make a good aim to the oil cap hole was about as stressful as could be! almost always got some small dribble on the manifold and the poor owner had to smell that for at least 5 blocks!
not as bad as those 60s ford trucks with a 352,360 or 390 that filled the frame up with oil when you pulled the plug. Those leaked for weeks!


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519458
09/18/17 02:05 PM
09/18/17 02:05 PM
Joined: Feb 2013
Posts: 3,117
Virginia
bigt61 Offline
bigt61  Offline
Joined: Feb 2013
Posts: 3,117
Virginia
The new valve covers are very nice. Good move.


92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519461
09/18/17 02:11 PM
09/18/17 02:11 PM
Joined: Sep 2015
Posts: 3,861
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,861
Connecticut
I spent a lot of hours in similar engine bays back in the 1990's. Brings me right back to my B5 Blue 1969 GTX. What are you running for ignition on your Mopar? Mopar Performance electronic ignition? Pertronix? Or just plain old points and condenser? I still have a MP Electronic Ignition kit that I bought new in 1996 and never installed.

As close as those exhaust manifolds are to other components, I never had anything melt or fail due to them. I long for those days when you could change various belts, alternator, or a radiator in 30-60 minutes.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: 1969 Mopar 440 under valve cover [Re: Chris142] #4519469
09/18/17 02:17 PM
09/18/17 02:17 PM
Joined: Apr 2008
Posts: 12,861
Onondaga County
Miller88 Offline
Miller88  Offline
Joined: Apr 2008
Posts: 12,861
Onondaga County
Originally Posted By: Chris142
Originally Posted By: KGMtech
Those BB Chrysler engines with the elevated exhaust manifold were always a challenge for me when I was a teenager working in a Chevron station in Vancouver. Leaning over the fender, trying to make a good aim to the oil cap hole was about as stressful as could be! almost always got some small dribble on the manifold and the poor owner had to smell that for at least 5 blocks!
not as bad as those 60s ford trucks with a 352,360 or 390 that filled the frame up with oil when you pulled the plug. Those leaked for weeks!


Here in NY that's not an unwated feature! At least the frame won't rust in that spot.


18 Forester 2.5I 6M
00 Jeep Cherokee
01 Ford F-350 XL 4x4 5M
Re: 1969 Mopar 440 under valve cover [Re: 69GTX] #4519478
09/18/17 02:33 PM
09/18/17 02:33 PM
Joined: Feb 2009
Posts: 8,776
Texas
440Magnum Offline OP
440Magnum  Offline OP
Joined: Feb 2009
Posts: 8,776
Texas
Originally Posted By: 69GTX
I spent a lot of hours in similar engine bays back in the 1990's. Brings me right back to my B5 Blue 1969 GTX. What are you running for ignition on your Mopar? Mopar Performance electronic ignition? Pertronix? Or just plain old points and condenser? I still have a MP Electronic Ignition kit that I bought new in 1996 and never installed.

As close as those exhaust manifolds are to other components, I never had anything melt or fail due to them. I long for those days when you could change various belts, alternator, or a radiator in 30-60 minutes.


I converted it to regular Mopar electronic ignition many years ago, and right now I've got a "Rev-n-ator" aftermarket unit with a settable rev limit, but in a box that looks like a stock Mopar EI (http://thertgarage.com/products.html). Its a little over priced for what it is since it doesn't have multiple sparks like MSD, but I've had some infant failures with the aftermarket EI boxes I've gotten in recent years and I like having a rev limiter. Unlike MSD, I can pop a spare Mopar EI box back in with a 3/8 wrench and a phillips screwdriver in about 5 minutes if it dies. Ever since the 70s I've always carried a spare ignition module and ballast resistor in the glovebox. Only had to use it a handful of times, but it sure beats walking!

The only thing that the manifolds have ever cooked for me is the valve cover gasket. I've tried the high-temp silicone gaskets with the steel valve covers, and the steel covers just flex too much to fully compress them and I always had to supplement with RTV, which itself would cook eventually. But these cast covers sealed right up with reusable Moroso silicone-over-steel gaskets and no added sealer or RTV, which was really nice.

Chrysler big-blocks are *wonderfully* easy to service in so many ways. 4 bolts hold in the water pump, which you can replace without removing the alternator/AC belts. Front distributor (yeah, the angle makes it just a little cramped, but not bad). "Dry" intake manifold so you don't have to drain the cooling system to R&R it. Deep-skirt block makes for a completely flat one-piece oil pan gasket without those pain-in-the-rear curved end pieces like smallblock Mopars (and Chevies) have. Oil pump mounted outside the block so you can swap it without dropping the pan.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519496
09/18/17 03:01 PM
09/18/17 03:01 PM
Joined: Jan 2013
Posts: 910
California
Kool1 Offline
Kool1  Offline
Joined: Jan 2013
Posts: 910
California
Your engine brings back memories. I truly enjoy seeing survivors that are well cared for. Are you a fan of the TV show Graveyard Carz?

Re: 1969 Mopar 440 under valve cover [Re: 440Magnum] #4519499
09/18/17 03:03 PM
09/18/17 03:03 PM
Joined: May 2012
Posts: 5,379
Fort Lauderdale, FL
DoubleWasp Offline
DoubleWasp  Offline
Joined: May 2012
Posts: 5,379
Fort Lauderdale, FL
Have you ever tried the exhaust manifold gaskets that have the heat shield tabs that rise up past the exhaust port level? Lot of us have had good results with those keeping the heat off of the valve cover.

The "HP" manifolds are a magnificent design that will support over 500hp.

Last edited by DoubleWasp; 09/18/17 03:04 PM.
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