How much weight do you save by going with all aluminum bolt-ons (383)?

[General_01]

So according to that bigblockdart info, the 727 weighs more and there isn't 75lbs difference between them.

You need to add up all the components.

A-833 and clutch assembly and bellhousing is 215 lbs.

727 and torque convertor is 140 lbs.

That is the 75 lb difference he is talking about.

[Ghoste]

 

[General_01]

I talked to Edelbrock before I bought the Performer RPM aluminum angle plug heads. They claim they are worth 15 HP over the straight plug aluminum heads they make for Mopar  with the logo on them. The Eddys were less $ at Jegs ($1350),then the "Mopar"heads were at Mancini($1460). I  don't think the Eddys will work with manifolds. I used Hooker comps 1 7/8 headers. had to dimple a couple of tubes.
The manager at Jegs (66 hemi Belvideer owner) let me trail fit several headers after I had bought the heads from them. They did not have TTI.

Sorry for the confusion on the earlier post.

intresting angled plugs , worth 15 hp  , new they were a better than straight  ...

Thats because they have the Edelbrock name stamped on them.

[tan top]

I talked to Edelbrock before I bought the Performer RPM aluminum angle plug heads. They claim they are worth 15 HP over the straight plug aluminum heads they make for Mopar  with the logo on them. The Eddys were less $ at Jegs ($1350),then the "Mopar"heads were at Mancini($1460). I  don't think the Eddys will work with manifolds. I used Hooker comps 1 7/8 headers. had to dimple a couple of tubes.
The manager at Jegs (66 hemi Belvideer owner) let me trail fit several headers after I had bought the heads from them. They did not have TTI.

Sorry for the confusion on the earlier post.

intresting angled plugs , worth 15 hp  , new they were a better than straight  ...

Thats because they have the Edelbrock name stamped on them.

yeah thats probably close to the truth    ...  wonder if anyone has dynoed them back to back  , to exactly see what the difference in HP is 

[General_01]

Well, I look at it as "What else are they gonna say". If they say there is no difference, you may go with the MP heads out of preference and they get no money.

Sounds like my neighbor. I told her her boys and their buddies were climbing on the roof when she was gone. You could see the path up the roof where all the granules were wore off the shingles. We had a few hail storms and the roofing people came out canvassing the neighborhoods looking for work. She had them look at her roof. When they were done she asked if kids walking up and down the roof would cause the damage I had pointed out. Of course they said no, because if they said yes, the damage would not be covered under insurance and they knew she couldn't afford to pay for a new roof. They said it was the weather so they could get the job and get paid by her home owners insurance. And she believed them and made a point to tell me what they said.

Motives, motives, motives.

[rt green]

OK. what about the 4 speed with the aluminum bell housing?

[tan top]

Well, I look at it as "What else are they gonna say". If they say there is no difference, you may go with the MP heads out of preference and they get no money.

Sounds like my neighbor. I told her her boys and their buddies were climbing on the roof when she was gone. You could see the path up the roof where all the granules were wore off the shingles. We had a few hail storms and the roofing people came out canvassing the neighborhoods looking for work. She had them look at her roof. When they were done she asked if kids walking up and down the roof would cause the damage I had pointed out. Of course they said no, because if they said yes, the damage would not be covered under insurance and they knew she couldn't afford to pay for a new roof. They said it was the weather so they could get the job and get paid by her home owners insurance. And she believed them and made a point to tell me what they said.

Motives, motives, motives.

     yep make sence

[flyinlow]

I friend who drives a 55 Nomad said chevy used angle plugs on some heads with a HP increase claim. I would like to see the proof from Edel brock on the angle plug claim.

[bull]

Curtis,
You are going to keep all the original items you take off, right? Something about restoring back to original sometime in the future.... I probably didn't need to chime in  but I worry so as you have one of the rarest '68 4-speed Chargers ever made, and coincidentally the 2nd rarest 2nd gen Charger ever made (not counting the XX 4-speeds)....  

Dan

P.S. I have an A833 in storage that I can put on a scale...let me know. 

Yes I'll be keeping all the original stuff. Even the screwed up heads, most likely in the attic, unless they can be saved. Which reminds me, those 906 heads aren't specific to the engine are they? I mean are there any stamping on the heads other than casting numbers that say these heads came with this block?

My 833 is sitting on my garage floor so I can weigh it easy enough to check those numbers above.

[bull]

So according to that bigblockdart info, the 727 weighs more and there isn't 75lbs difference between them.

You need to add up all the components.

A-833 and clutch assembly and bellhousing is 215 lbs.

727 and torque convertor is 140 lbs.

That is the 75 lb difference he is talking about.

I wonder if this is a dry weight? One pint = one pound so how much fluid is in a 727 including the converter? Not that it will make much difference but it's something to consider. Good thing I lost about 70 lbs.

[Dans 68]

Yes I'll be keeping all the original stuff. Even the screwed up heads, most likely in the attic, unless they can be saved. Which reminds me, those 906 heads aren't specific to the engine are they? I mean are there any stamping on the heads other than casting numbers that say these heads came with this block?

Curtis,

Near as I can tell the only unique marking on the heads would be the casting numbers. Early production '68's had a part number of 2843904 with casting number of 2951250. Shortly after production started the casting number was changed to 2843906 (and thus are how the heads are known today). If they have the earlier casting number you may want to keep them (they may be rare). If they are casting "906" then no matter...any 906's will work.

Dan

[General_01]

Yes I'll be keeping all the original stuff. Even the screwed up heads, most likely in the attic, unless they can be saved. Which reminds me, those 906 heads aren't specific to the engine are they? I mean are there any stamping on the heads other than casting numbers that say these heads came with this block?

Curtis,

Near as as can tell the only unique marking on the heads would be the casting numbers. Early production '68's had a part number of 2843904 with casting number of 2951250. Shortly after production started the casting number was changed to 2843906 (and thus are how the heads are known today). If they have the earlier casting number you may want to keep them (they may be rare). If they are casting "906" then no matter...any 906's will work.

Dan

I wonder if those 2951250 heads were also used on '68's. I bought my 383 from a kid who got it out of a truck in the junk yard a few years back. It was a '68 motor and it had those heads. I already sold them with my old 383 I pulled from the car, so I don't have them anymore.

[General_01]

I did a search and it shows the 2951250 heads were used on '68 440's.

here is the link:

http://www.mopar1.us/headcastnumber.html

[Dans 68]

I did a search and it shows the 2951250 heads were used on '68 440's.

here is the link:

http://www.mopar1.us/headcastnumber.html

Yes, as far as head identification goes whatever is said about the '68 383's can be said about the 440's.

Dan

[375instroke]

Wouldn't the heads have a casting date?

Oil capacity and weight:

A-833        8.5 pts.    =  7.26#
A-904        15.5 pts.  =  13.25#
A-727 std.  18.5 pts.  =  15.81#
A-727 HP    15.5 pts.  =  13.25#

[Lifsgrt]

I run the Edelbrock heads with stock 1969 HP exhaust manifolds with no problems.