Recent posts

#11
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by Eyez Open - February 26, 2024, 04:34 AM
Well now mopar is different...and a 440 is old so there is that as they say these days.


Just some thoughts here nothing scientific. Quench/squish does a few things, one would be slamming/pulvering the fuel charge or atomizing it...From there it's squished into chamber area near the plug and finally boom. As opposed to random induction distribution and a uneven burn rates.

Quenching does help avoid detonation.. lowers heat along with increased fuel combustion efficiency..Have you ever revved a engine it and it jumps to life? T hats quench at its best.

To your issue...your new pistons are 019 in the hole, milling the block down would be only way to get quench..perhaps 005 on the block and 005 on the heads. But that's more money...and maybe valve clearance issue's...lots of measuring 3 times cutting once.

"Or picking up a set of closed chambered heads"

No matter what you do it will work out well, keep the compression up to 8:5 and control the detonation with timing..hmm keeping your original intake comes to mind..I've never seen a dual plane high rise do anything below 5000 rpm...I know I'm a heathen saying such thing but...such is life.

Below a quenched 440 and a sixpack...on video one he address the cam question everyone is experiencing to some extent.

https://youtu.be/p2EqmrvUgIU?feature=shared
#12
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by RockwoodMike - February 25, 2024, 07:59 PM
Here is a side profile of these heads.Quench area is below the deck of the head..I don't have a CC measure system but they are somewhere at 87-90 CCs for size..
New exhaust seats were added

Correct casting number..Exclusive for the motorhome heads
#13
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by Eyez Open - February 25, 2024, 06:55 PM
 :shocked:

I've been there myself...The rear seals in the tag axle were 85 clams.  :angry:
Drilling holes? Not a good sealing solution, now that is merely a opinion.

Your picture of the heads...it looks like the valve area is raised above the quench area. Is that right?

Engine Cylinder Head 3751213 that's your casting number?

And more..about cometic last issue on the video

https://youtu.be/Yz2no-Domaw?feature=shared
#14
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by RockwoodMike - February 25, 2024, 06:06 PM
Nearly 100 EACH!! :'(
#15
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by RockwoodMike - February 25, 2024, 05:58 PM
https://www.summitracing.com/parts/mrg-1135g

here is what Mr gasket has to offer...020 thick but it is missing those 2 holes at each cylinder for the water circulation around the spark plugs..I don't know if those holes could be drilled or not..

The blue Felpro gaskets have a diameter of 4.5 inches at the cylinder bore..With a engine bore of 4.35 for the block, that is more loss..These steel gaskets are 4.4 inches

That price of 35.82 is EACH!! times 2 for what is needed..

Plastigauge..Yes I will check clearances.. The crank was not cut down..It is still factory sized and just needed a polish..

The blue Felpro gaskets have the holes for the spark plugs.. 
#16
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by Eyez Open - February 25, 2024, 04:37 PM
Well love the one your with always wins the day..kinda. Maybe measure your deck height accurately and measuring multiple holes at the same time look for uniformity. From there gasket selection is next.

I've no experience with mopar 07, was the last time I built a engine. But this much I can tell you, a machinist skilled/experienced is priceless in building.


Just off the cuff are you using plastic gauges on your crank bearing clearances?

https://www.autozone.com/test-scan-and-specialty-tools/plastigage/p/sealed-power-green-and-red-plastigage-kit/36168_0_0?spps.s=2229&cmpid=LIA:US:EN:AD:NL:1000000:IEN:19489353538&&CATARGETID=120054150001289795&CADevice=m&gad_source=1&gclid=Cj0KCQiA5-uuBhDzARIsAAa21T_36TIj_ZlI7Us-h68kPmUmh7eNWkDrcDToltKB8HFhaXe5Kqohn4IaAuSdEALw_wcB&gclsrc=aw.ds
Looks like mopar did use a 020 gasket, it seems this is a common issue. And then there's the water jacket design on your heads, those are very unique.

https://www.forabodiesonly.com/mopar/threads/head-gasket-question.487589/#post-1973392844
https://www.forbbodiesonly.com/moparforum/threads/383-head-gasket-recomendations.128781/
#17
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by RockwoodMike - February 25, 2024, 04:00 PM
I really never ran the engine before I tore it down..The PO had a heck of a time getting it to my house because of the fuel delivery issues(It had a plugged pickup tube in the main tank)..

As I tore it down, that piston was at least .150 down the hole..It had a steel gasket at about .020..and with the chambers of the head as open as they are, I estimate 7.7 to 1 on the compression..

Now that I have new pistons, with a higher compression height..Maybe .019 down the hole..Add to that a blue Felpro gasket at .040 compressed..then add the head chambers as shown in my second picture..

So I am wondering if I really did much to improve the situation..

A screen shot of this video shows his heads with a flat quench area..

Mine is open..

I can't do much more other than getting a steel gasket from Mr. Gasket..About .020 thick..

Original factory issue gasket was a steel gasket..
#18
Dodge - Chrysler Chassis / Re: 440 rebuild time. Doing it...
Last post by Eyez Open - February 25, 2024, 01:43 PM
Quote from: RockwoodMike on February 07, 2024, 07:00 PMAs of last Monday, the block and piston rods are back at the machine shop..New 9.5 CR pistons are on their way..

The low CR pistons were cast aluminum..The new ones will be forged..

This is what you get when you don't have any experience with Mopar..If it was a Ford 460, it would be a different story ..
Mopar said way back when, that the CR was 8.1 in those smog years..72-79..But I think it was just as I found it..
About 7.75 CR

What a terrible way for a 440 muscle engine to end it's run..With a whimper
..



A video that highlights quite a few things in regards to quench. Our old RV engine's were handicapped from the start, detonation and heat build up were built in,retarded timing was the solution...which created more heat and a very sluggish engine..diesel like qualities. Then came the hemi.. Chrysler took things to a whole new level...they eliminated quenching completely with a hemispheric combustion chamber.


https://youtu.be/lBiQIWwJzGc?feature=shared
#19
Project Blogs / Installing 30lb propane tanks
Last post by RoamingRobert - February 24, 2024, 07:41 PM
I was going to swap out two 30lb propane tanks for the two 20lb that originally came with my D21 Brave 1977 ... they simply do not want to fit into the molded tank slides plus it looks like the overall depth is slightly too short ... ugh
#20
Manuals & Diagrams / Re: Chevy P30 Chassis Manuals
Last post by Moon0 - February 22, 2024, 12:13 PM
Chevy P30 Chassis Manuals are instructional guides specifically tailored to the Chevrolet P30 chassis. These manuals provide detailed information on maintenance, repairs, and troubleshooting procedures for the chassis, helping owners and keto pendent technicians effectively service and maintain their vehicles.