Previous Thread
Next Thread
Print Thread
10 sec n/a A-body with Pre Eagle 5.7- step inside #3237818
06/11/24 09:26 AM
06/11/24 09:26 AM
Joined: Apr 2009
Posts: 3,431
Toronto
M
mshred Offline OP
master
mshred  Offline OP
master
M

Joined: Apr 2009
Posts: 3,431
Toronto
Hey guys,

So I have a pre Eagle 5.7 sitting on my garage floor that I bought years ago for $200. Guy was selling it as a core and said that it had a knock, but never took it apart to find out. I would like to build this engine to be something that can run 10.80-10.90 N/A in a 3400lb A-body for a very close person to me who does nothing for themselves, and many things for others, so that they can get their car back on the road and being enjoyed again.

I am fully aware the engine damage could be anything from lifters, rod bearings, or bent rods, and I am prepared to fix any of that. BUT I am hoping its just spun bearings or a cam issue, and if everything checks out, that I can throw the stock bottom end back together with new bearings, rings, and maybe a hone and crank turn IF necessary. And yes, I am well aware that the eagle 5.7 bottom ends are much better, but trying to get this whole drivetrain put together with a budget mindset.

My plan was- Eagle heads (not sure if 12:1 will run on Pump 91 here...if not, then I would go with thicker head gaskets to bring compression down) with a new cam (something that would work with stock pistons and make good power), intake (carb or efi still up in the air, so suggestions for both would be great), headers, coupled with a good converter behind a 727 or 904 (both available for me to build) and a re-geared 8-3/4 (currently has 4.88's, but maybe something more street friendly like 3.73 or 4.10 could get the job done here). Im hoping if it can make 500-550hp that in said A-body it could squeak out a high 10.

So, how would you do it? Or should I say, how have you DONE it? I really would like to avoid strokers and costly machine work like balancing for new pistons, so please, suggestions trying to follow what I am working with are appreciated.

Thanks!

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mshred] #3238359
06/13/24 04:06 PM
06/13/24 04:06 PM
Joined: Jan 2005
Posts: 12,462
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,462
Kalispell Mt.
I would run 12 to 1 in a heart beat. I have ran eagle heads bolted directly onto early 5.7 short blocks with stock head gaskets, cam and all and they run great... if your running a longer duration cam even better. This isn't a BB head designed in the 1950s with a spark plug way off to one side of the chamber, iron heads with valve in the wrong spot in the head with a heat crossover and hot coolant running thru the same manifold as the air so they are far better with high compression.

As for your 5.7 it is probably not just a lifter, that problem started out of the blue in 2009.

Definitely use the 904 with low gears, these things can make power over a very broad range of RPM.

Stock 6.1 cam in this engine makes a great budget screamer and works fine with the eagle springs and all but I don't know if it will make quite that much power even with good headers and intake.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: HotRodDave] #3238404
06/13/24 09:42 PM
06/13/24 09:42 PM
Joined: Feb 2022
Posts: 1,288
Nor here, Nor there
D
Dart 500 Offline
pro stock
Dart 500  Offline
pro stock
D

Joined: Feb 2022
Posts: 1,288
Nor here, Nor there
12 to 1 w/ 300~cfm eagle heads isn't going to take much to hit 550hp. I'd be paying special attention to the cam and not going with a stock 6.1 unit. To squeak out a 10 NA the cam will have to be spot on for the weight, intake, converter, gear etc.

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: Dart 500] #3238928
06/17/24 09:32 AM
06/17/24 09:32 AM
Joined: Apr 2009
Posts: 3,431
Toronto
M
mshred Offline OP
master
mshred  Offline OP
master
M

Joined: Apr 2009
Posts: 3,431
Toronto
Thanks for the input guys. We even have pump 94 octane local here, but 91 is more readily available so I want to build around that. But if 12:1 is doable with the modern design and efficiency of these heads, then 12:1 is is!

As much as this is budget, and there may need to be considerable attention or money spent on possibly repairing a bad bottom end, the plan is tentatively to keep it stock, right down to the pistons...Which has me wondering, how much cam can I go with before running into PTV clearance issues? As much as the 6.1 cam is a great budget option, I am definitely not opposed to spending on a bumpstick that will definitely get me to where I want to be on this build power wise.

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mshred] #3239085
06/18/24 08:02 AM
06/18/24 08:02 AM
Joined: Jan 2004
Posts: 3,839
Central Missouri Fort Leonard...
mopar65 Offline
master
mopar65  Offline
master

Joined: Jan 2004
Posts: 3,839
Central Missouri Fort Leonard...
A friend of mine a few years ago took a 200,000 mile 05 hemi out of a truck and built what you are wanting to do. He reused the short block, but he might of replaced the bearing and maybe the rings. I will have to ask him if he used the stock 04 truck cam or put a different one in it. But pretty much a stock 04 short block, stock eagle heads and stock thickness head gaskets . Used a Ritter single plane intake, msd hemi 6 igntion box, 650 holley DP carb. Home made headers. 727 transmission , 8 inch 5000 stall converter. 4.30 gears and Mt 275/60/15 drag radials. Stuck the hemi in a 94 dodge dakota extend cab truck. I think he raced it on 93 pump gas. The dakota would run 6.80-6.90 all day long in the 1/8 mile. I do remember him saying he was glad the msd6 had a revlimiter, because he couldn't beleave how fast the hemi would Rev. I watched him race it after he got the truck running and what little he did to the 04 hemi I couldn't beleave how good the dakota ran. The engine before was a 11.1 compression 360 magnum than ran a best of 7.15 inbthe 1/8 mile. It had a lot of stock parts in it bit was built pretty good. Also with the magnum it ran 7.15 at 95/96 mph and with the 04 hemi he ran 6.80/6.90 at 99.8 mph. I think he ran 101 mph a couple of times.


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mopar65] #3239103
06/18/24 10:34 AM
06/18/24 10:34 AM
Joined: Apr 2009
Posts: 3,431
Toronto
M
mshred Offline OP
master
mshred  Offline OP
master
M

Joined: Apr 2009
Posts: 3,431
Toronto
Originally Posted by mopar65
A friend of mine a few years ago took a 200,000 mile 05 hemi out of a truck and built what you are wanting to do. He reused the short block, but he might of replaced the bearing and maybe the rings. I will have to ask him if he used the stock 04 truck cam or put a different one in it. But pretty much a stock 04 short block, stock eagle heads and stock thickness head gaskets . Used a Ritter single plane intake, msd hemi 6 igntion box, 650 holley DP carb. Home made headers. 727 transmission , 8 inch 5000 stall converter. 4.30 gears and Mt 275/60/15 drag radials. Stuck the hemi in a 94 dodge dakota extend cab truck. I think he raced it on 93 pump gas. The dakota would run 6.80-6.90 all day long in the 1/8 mile. I do remember him saying he was glad the msd6 had a revlimiter, because he couldn't beleave how fast the hemi would Rev. I watched him race it after he got the truck running and what little he did to the 04 hemi I couldn't beleave how good the dakota ran. The engine before was a 11.1 compression 360 magnum than ran a best of 7.15 inbthe 1/8 mile. It had a lot of stock parts in it bit was built pretty good. Also with the magnum it ran 7.15 at 95/96 mph and with the 04 hemi he ran 6.80/6.90 at 99.8 mph. I think he ran 101 mph a couple of times.


Thats awesome! Yea, if you don't mind asking him what cam he ended up with, that would be helpful in getting the bigger picture on it, but nonetheless that's awesome- simple and quick!

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mshred] #3240619
06/26/24 01:49 AM
06/26/24 01:49 AM
Joined: Dec 2005
Posts: 4,271
State of Fascism
5
52savoy Offline
master
52savoy  Offline
master
5

Joined: Dec 2005
Posts: 4,271
State of Fascism
Why not build a turbo engine? A little bit more work and it would fly. There was a budget built single turbo'd 5.7 in Dayton ohio running mid 8s in a Volare a few years ago.

Not it but others...

https://www.youtube.com/results?search_query=5.7+Hemi+turbo+Volara

Last edited by 52savoy; 06/26/24 01:49 AM.
Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: 52savoy] #3240840
06/27/24 10:32 AM
06/27/24 10:32 AM
Joined: Apr 2009
Posts: 3,431
Toronto
M
mshred Offline OP
master
mshred  Offline OP
master
M

Joined: Apr 2009
Posts: 3,431
Toronto
Originally Posted by 52savoy
Why not build a turbo engine? A little bit more work and it would fly. There was a budget built single turbo'd 5.7 in Dayton ohio running mid 8s in a Volare a few years ago.

Not it but others...

https://www.youtube.com/results?search_query=5.7+Hemi+turbo+Volara


Its not just building a turbo engine. Its the building of the turbo hot and cold side, its the fuel system upgrades, engine management changes, converter changes, etc.

There is a reason I want this to be N/A with stock bottom end, and its not because I am against power adders. One of my own cars is currently a G3 hemi, Procharger, Terminator x efi that is almost complete.

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mshred] #3241823
07/01/24 10:28 PM
07/01/24 10:28 PM
Joined: Jan 2005
Posts: 12,462
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,462
Kalispell Mt.
I don't know why there is so few people building N/A combos out of these, it is so easy to run faster than most guys cars are legal for. When I was big into small blocks it was crazy to get heads that flowed as much as even a run of the mill eagle 5.7 head not to mention a 6.4 or professionally ported 6.4 head... those flow numbers were untouchable and now there are 340CFM heads for $600 in the junk yard and everyone suddenly thinks they need to cram 20 feet of air tubes, 5 feet of oil lines, oil coolers, intercoolers, coolant lines, vacuum lines, custom exhaust piping, fancy MAP sensors, blow off valves, wiring, catch cans, computers... to make any power. An SRT8 6.4 with 950HP carb, drag pack intake and good long tube headers (they were open headers) can make 580 HP at the flywheel without even pulling the valve covers off! A good cam, a little port work, mill the block and head a little and N/A power can be killer on these things. Most cars especially swaps into older lighter cars can't even handle 600 real HP.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mshred] #3243375
07/10/24 12:30 AM
07/10/24 12:30 AM
Joined: Aug 2003
Posts: 3,247
Between a rock & a hard place
C
cudadoug Offline
master
cudadoug  Offline
master
C

Joined: Aug 2003
Posts: 3,247
Between a rock & a hard place
Originally Posted by mshred
Originally Posted by mopar65
A friend of mine a few years ago took a 200,000 mile 05 hemi out of a truck and built what you are wanting to do. He reused the short block, but he might of replaced the bearing and maybe the rings. I will have to ask him if he used the stock 04 truck cam or put a different one in it. But pretty much a stock 04 short block, stock eagle heads and stock thickness head gaskets . Used a Ritter single plane intake, msd hemi 6 igntion box, 650 holley DP carb. Home made headers. 727 transmission , 8 inch 5000 stall converter. 4.30 gears and Mt 275/60/15 drag radials. Stuck the hemi in a 94 dodge dakota extend cab truck. I think he raced it on 93 pump gas. The dakota would run 6.80-6.90 all day long in the 1/8 mile. I do remember him saying he was glad the msd6 had a revlimiter, because he couldn't beleave how fast the hemi would Rev. I watched him race it after he got the truck running and what little he did to the 04 hemi I couldn't beleave how good the dakota ran. The engine before was a 11.1 compression 360 magnum than ran a best of 7.15 inbthe 1/8 mile. It had a lot of stock parts in it bit was built pretty good. Also with the magnum it ran 7.15 at 95/96 mph and with the 04 hemi he ran 6.80/6.90 at 99.8 mph. I think he ran 101 mph a couple of times.


Thats awesome! Yea, if you don't mind asking him what cam he ended up with, that would be helpful in getting the bigger picture on it, but nonetheless that's awesome- simple and quick!


I have an email from the Dakota guy somewhere regarding this. He told me he tried a drag pak cam and it wouldn’t clear with the stock head gaskets and 12:1. So he settled on a OE 6.1 cam. Pretty impressive time slips for such low $$$!

Re: 10 sec n/a A-body with Pre Eagle 5.7- step inside [Re: mopar65] #3243658
07/11/24 12:05 PM
07/11/24 12:05 PM
Joined: Jan 2003
Posts: 8,041
Tulsa OK
Bad340fish Offline
master
Bad340fish  Offline
master

Joined: Jan 2003
Posts: 8,041
Tulsa OK
Originally Posted by mopar65
A friend of mine a few years ago took a 200,000 mile 05 hemi out of a truck and built what you are wanting to do. He reused the short block, but he might of replaced the bearing and maybe the rings. I will have to ask him if he used the stock 04 truck cam or put a different one in it. But pretty much a stock 04 short block, stock eagle heads and stock thickness head gaskets . Used a Ritter single plane intake, msd hemi 6 igntion box, 650 holley DP carb. Home made headers. 727 transmission , 8 inch 5000 stall converter. 4.30 gears and Mt 275/60/15 drag radials. Stuck the hemi in a 94 dodge dakota extend cab truck. I think he raced it on 93 pump gas. The dakota would run 6.80-6.90 all day long in the 1/8 mile. I do remember him saying he was glad the msd6 had a revlimiter, because he couldn't beleave how fast the hemi would Rev. I watched him race it after he got the truck running and what little he did to the 04 hemi I couldn't beleave how good the dakota ran. The engine before was a 11.1 compression 360 magnum than ran a best of 7.15 inbthe 1/8 mile. It had a lot of stock parts in it bit was built pretty good. Also with the magnum it ran 7.15 at 95/96 mph and with the 04 hemi he ran 6.80/6.90 at 99.8 mph. I think he ran 101 mph a couple of times.


Did he also have a Duster he put a Hemi in? There was a "Stock Block" class here locally and some Missouri boys wrecked the class with Gen III hemis. I think at some point they had a real hefty weight penalty on them but it didn't matter lol.


68 Barracuda Formula S 340






Powered by UBB.threads™ PHP Forum Software 7.7.1