543 0R 505

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80fbody said:
Personally, I think the stroke on the 543" makes the block a time bomb. The 505" would be much easier on the block. I guy a know loves those 505's. Built and raced several weekly. All are still together. He doesn't swing any larger crank as he still uses stock blocks.
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But if it's spinning less rpm & getting the same results as a 505 with the same csa in the heads shouldn't they equal out ? I'm pretty sure I wouldn't want to spin a 4.5 stroke at the same speed a 4.150 stroke.
Torque peak should be 4680 rpm with mw port 543 ci & 5150 for a 505.
Piston speed is better in a 505
 
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I ve got similar pieces to put a 520 together, 4.375 crank, 7.1 rods. In spite of my favorite mopar builder/machinists opinion, i would use the best lower end bandaids i could get, to try to help the bottom end live. Im gonna use aluminum caps and a girdle. Not everyone can find/afford/justify the expense of an iron aftermarket block. Heck, is there even a new one available? Anywhere?
I can understand the expense if trying to go eights, but for a ten second car?
 
33IMP said:
I ve got similar pieces to put a 520 together, 4.375 crank, 7.1 rods. In spite of my favorite mopar builder/machinists opinion, i would use the best lower end bandaids i could get, to try to help the bottom end live. Im gonna use aluminum caps and a girdle. Not everyone can find/afford/justify the expense of an iron aftermarket block. Heck, is there even a new one available? Anywhere?
I can understand the expense if trying to go eights, but for a ten second car?
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Bulldog & indy, I think...but they're a chunk of change
 
MOPARMAGA said:
Bulldog & indy, I think...but they're a chunk of change
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If you can even get anything out of Bulldog. There seems to be a wait period on EVERYTHING.

Put the biggest pig in the smallest package. Run it lightly tuned? It will last. It's the supporting driveline and suspension parts that suffer.

My '70 Cuda 904 ci DOHC Pro Street build to take that build strategy to the extreme? Engine 1200 HP on pump 91 gas. Redline is 6500. Max HP at 5200. Over 1000 ft/lbs at 2600 RPM. This motor was designed and poured from the foundry to be this big. Thus for all practical purposes? Stock. My point? Overkill!

ZomboDroid 27072020230012.jpg
 
cojohnso said:
If you can even get anything out of Bulldog. There seems to be a wait period on EVERYTHING.

Put the biggest pig in the smallest package. Run it lightly tuned? It will last. It's the supporting driveline and suspension parts that suffer.

My '70 Cuda 904 ci DOHC Pro Street build to take that build strategy to the extreme? Engine 1200 HP on pump 91 gas. Redline is 6500. Max HP at 5200. Over 1000 ft/lbs at 2600 RPM. This motor was designed and poured from the foundry to be this big. Thus for all practical purposes? Stock. My point? Overkill!

View attachment 1715716286
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WHOA !!!!!!!!!!
 
MOPARMAGA said:
Bulldog & indy, I think...but they're a chunk of change
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"Available" to me means i can call someplace or go somewhere, hand over a check, and leave with my part. Bulldog does not qualify, and does indy even make an iron block for a wedge? And if they do, how much more machine work will it take to make it right?
I can buy and take home an aftermarket big block chevy in an hour. (I know, its not a MOPAR!) I can buy an all-forged 632 chevy short, for what an aftermarket mopar block costs.
 
MOPARMAGA said:
WHOA !!!!!!!!!!
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This whole idea got started when I met Joe Schubeck in Vegas. He mentioned his new mountain monster motor was 5" wider than a Chrysler Race Hemi. I got to thinking. (Isn't that where all our troubles begin? Lol.) My rolling body old drag Cuda is 5" wider than my Duster. And they got Hemi's to fit in A-bodies? So after measuring and corresponding with Joe? It looked doable. Joe then made me an offer I couldn't refuse.

Sure as hell. The same problems of putting a Hemi in an A-body arose as putting this monster in an E-body. VERY tight fit between the shock towers. But working the problem like those of the early days of the Hemi? Got it to fit.
 
33IMP said:
"Available" to me means i can call someplace or go somewhere, hand over a check, and leave with my part. Bulldog does not qualify, and does indy even make an iron block for a wedge? And if they do, how much more machine work will it take to make it right?
I can buy and take home an aftermarket big block chevy in an hour. (I know, its not a MOPAR!) I can buy an all-forged 632 chevy short, for what an aftermarket mopar block costs.
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Point taken
 
PRH said:
Aahh yes...... the Schubeck 904.

That’s a pretty rare piece!!:thumbsup:
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Yeah. That's a problem. I know who bought the molds for the 904. And the only spare block in existence. (At least I did before this Covid stuff.) So building any farther is not an option at this time. But my hope is? Don't need too. (You can't keep the Cuda on the ground as is?) But I have also learned. One is never as fast as one hoped?
 
cojohnso said:
This whole idea got started when I met Joe Schubeck in Vegas. He mentioned his new mountain monster motor was 5" wider than a Chrysler Race Hemi. I got to thinking. (Isn't that where all our troubles begin? Lol.) My rolling body old drag Cuda is 5" wider than my Duster. And they got Hemi's to fit in A-bodies? So after measuring and corresponding with Joe? It looked doable. Joe then made me an offer I couldn't refuse.

Sure as hell. The same problems of putting a Hemi in an A-body arose as putting this monster in an E-body. VERY tight fit between the shock towers. But working the problem like those of the early days of the Hemi? Got it to fit.
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WHOA AGAIN !!!!! + THAT IS BAD *** !
 
In closing? 543. Especially with a lower cam profile as indicated. Any CFM issues would show at highest RPM. It's ALOT easier to backoff shift line a bit than make up 38 ci by RPM. If you can handle the low-end torque? I think its a no brainer myself?
 
Yeah. But actually getting one is the problem. There is a guy on B-bodies waiting more that one year from Bulldog. Now Richard Bradshaw not even responding to his inquiries. Might just be a single instance? But until that is resolved? No thanks.
 
I'm not nearly as knowledgeable of most of you serious racing guys, but I would go with the 505 for consistently consistent runs. More power is great, but if can reliably and consistently run the same ET, I'd go that direction. I haven't been on the strip in years, but I'll soon be an empty nester, and will be the grey haired "Old Fart in an Old Dart" on the local strip. On the street, torque is King.
 
33IMP said:
"Available" to me means i can call someplace or go somewhere, hand over a check, and leave with my part. Bulldog does not qualify, and does indy even make an iron block for a wedge? And if they do, how much more machine work will it take to make it right?
I can buy and take home an aftermarket big block chevy in an hour. (I know, its not a MOPAR!) I can buy an all-forged 632 chevy short, for what an aftermarket mopar block costs.
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^815 h.p. w/ a waranty too !!
 
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