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Re: How big can you go with after market block?
[Re: Dragula]
#2948838
07/30/21 01:43 PM
07/30/21 01:43 PM
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Joined: Jan 2003
Posts: 2,923
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,923
A shed in England
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655 ci. 4.840 B/S 4.56 bore x 5 stroke. 
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: How big can you go with after market block?
[Re: Dragula]
#2948863
07/30/21 02:53 PM
07/30/21 02:53 PM
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Joined: Jan 2003
Posts: 2,923
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,923
A shed in England
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4.90" or 5.00" B/S on a Hemi 99. Not sure of Deck height though ??
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: How big can you go with after market block?
[Re: Tig]
#2948866
07/30/21 03:06 PM
07/30/21 03:06 PM
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Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
Dragula
OP
I Live Here
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OP
I Live Here
Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
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4.90" or 5.00" B/S on a Hemi 99. Not sure of Deck height though ??
Yes Todd Goodwin makes those...I have seen those at nearly 700 cubes. And I know there was one by a member on here for sale on RJ...$43k...Looked awesome. Would love to know more about them.
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Re: How big can you go with after market block?
[Re: Dragula]
#2948871
07/30/21 03:17 PM
07/30/21 03:17 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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When you replace the block, crank, cam, heads, manifold, pan...
what part is still MoPar?
Boffin Emeritus
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Re: How big can you go with after market block?
[Re: polyspheric]
#2948875
07/30/21 03:27 PM
07/30/21 03:27 PM
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Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
Dragula
OP
I Live Here
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OP
I Live Here
Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
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When you replace the block, crank, cam, heads, manifold, pan...
what part is still MoPar? Well then my current G2 isn't really a Mopar....But it sure looks good in their.
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Re: How big can you go with after market block?
[Re: polyspheric]
#2948885
07/30/21 03:54 PM
07/30/21 03:54 PM
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Joined: Dec 2013
Posts: 4,680
Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,680
Wichita
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When you replace the block, crank, cam, heads, manifold, pan...
what part is still MoPar? The same can be said for every make out there. Think the Chevy and Ford guys use only OEM parts?
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: How big can you go with after market block?
[Re: Dragula]
#2948892
07/30/21 04:22 PM
07/30/21 04:22 PM
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Joined: Feb 2003
Posts: 991
Addison,IL
OUTLAWSSAA
super stock
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super stock
Joined: Feb 2003
Posts: 991
Addison,IL
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Saw an article the other day, and the guy had a 636 Hemi, Indy block I believe....I thought 605 or so was it, but I guess not. Is that a raised cam and a 5" stroke? .7854 X 4.5bore X 4.5bore X 5stroke X 8=636 Would require a raised cam block.
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Re: How big can you go with after market block?
[Re: GY3]
#2948897
07/30/21 04:35 PM
07/30/21 04:35 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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I see being wrong doesn't affect your interest in criticizing me...
Boffin Emeritus
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Re: How big can you go with after market block?
[Re: Dragula]
#2948900
07/30/21 04:46 PM
07/30/21 04:46 PM
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Joined: Feb 2013
Posts: 154
Canada
cuda499
member
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member
Joined: Feb 2013
Posts: 154
Canada
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4.90" or 5.00" B/S on a Hemi 99. Not sure of Deck height though ??
Yes Todd Goodwin makes those...I have seen those at nearly 700 cubes. And I know there was one by a member on here for sale on RJ...$43k...Looked awesome. Would love to know more about them. Ive got the goodwin and its 648 cubes, and they use a chevy block. These engines are a 5.0 borespace and mopar doesn't make Its sitting in my shop. I have it listed for 40 with the racepak, carbs, converter etc etc. It'll sell for that or ill keep it on display. Those 655 hemi's and 636 cube deals arent for me, and id never want to make them over 604.... I mean think about it, there isn't an engine with a heavier piston then a hemi, and when you add stroke you are adding piston speed. If you can get it done with less cubes I would. My last street build was a 572, and my new one will be the same only because its not boosted. Now if it was a wedge engine, i might take the cubes. This would depend on how serious the build was, cylinder head, cam shaft, etc etc...
Last edited by cuda499; 07/30/21 05:26 PM.
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Re: How big can you go with after market block?
[Re: cuda499]
#2949042
07/31/21 03:11 AM
07/31/21 03:11 AM
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Joined: Jan 2003
Posts: 2,923
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,923
A shed in England
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4.90" or 5.00" B/S on a Hemi 99. Not sure of Deck height though ??
Yes Todd Goodwin makes those...I have seen those at nearly 700 cubes. And I know there was one by a member on here for sale on RJ...$43k...Looked awesome. Would love to know more about them. Ive got the goodwin and its 648 cubes, and they use a chevy block. These engines are a 5.0 borespace and mopar doesn't make Its sitting in my shop. I have it listed for 40 with the racepak, carbs, converter etc etc. It'll sell for that or ill keep it on display. Those 655 hemi's and 636 cube deals arent for me, and id never want to make them over 604.... I mean think about it, there isn't an engine with a heavier piston then a hemi, and when you add stroke you are adding piston speed. If you can get it done with less cubes I would. My last street build was a 572, and my new one will be the same only because its not boosted. Now if it was a wedge engine, i might take the cubes. This would depend on how serious the build was, cylinder head, cam shaft, etc etc... I've drooled over that for a while, since it's based on a chevy block I'm guessing the rear bolt pattern is for 'glides / TH type transmissions ? The 655 we have is a pump gas N/A wedge deal.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: How big can you go with after market block?
[Re: Tig]
#2949079
07/31/21 09:41 AM
07/31/21 09:41 AM
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Joined: Jan 2003
Posts: 19,367
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,367
Las Vegas
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655" is the limit. 4.563"x5". Does not have to be a 4.84" BS block. We have done a 645, 4.530"x5" and a 655 Predator engines. I have a 655 in our Dragster. It is a "low compression" smallish cam makes 1100 pretty easily with a single 4bbl on a cast intake.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: How big can you go with after market block?
[Re: fbs63]
#2949119
07/31/21 12:05 PM
07/31/21 12:05 PM
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Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
Dragula
OP
I Live Here
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OP
I Live Here
Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
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Can I ask why you are so stuck on cubic inch? A 572 built right will make all the HP a stock body small tire car can use. One thing no one talks about with these large cube engines is maintenance. First you need to find a head with a large enough CSA and volume. Then there is valve lift in the 1.00 to 1.30 range. The majority of the 700+ cube motors have Titanium con rods that have cycle life of an aluminum rod. They are not Bracket or street motors. Put a ProCharger on one of your engines and be done. Remember the days of running around town in a stock stroked mopar....Then getting your hands on a good running stroker! Having the cubes is awesome.....Those guys are putting blowers on 9:1 632's....I would like to hit 1000hp some day....I will get my street junk back out to the track somtime this year and see how its running and if I found more HP....I envey you guys with the big engines and +1000hp...Would like to hear about some of them...The wedge based one, and the predators are cool...
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Re: How big can you go with after market block?
[Re: Al_Alguire]
#2949121
07/31/21 12:10 PM
07/31/21 12:10 PM
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Joined: Sep 2003
Posts: 1,049
San Jose Ca.
boatracer572
super stock
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super stock
Joined: Sep 2003
Posts: 1,049
San Jose Ca.
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655" is the limit. 4.563"x5". Does not have to be a 4.84" BS block. We have done a 645, 4.530"x5" and a 655 Predator engines. I have a 655 in our Dragster. It is a "low compression" smallish cam makes 1100 pretty easily with a single 4bbl on a cast intake. Actually that’s incorrect....... the biggest combo I’ve seen is a world cast iorn block 4.560” bore and 5.120” stroke = 668” with an early cast iorn world block or Chicago connection cast block 4.60” bore and 5.12” stroke 680” is possible........
Last edited by boatracer572; 07/31/21 12:28 PM.
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Re: How big can you go with after market block?
[Re: Tig]
#2949226
07/31/21 06:50 PM
07/31/21 06:50 PM
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Joined: Feb 2013
Posts: 154
Canada
cuda499
member
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member
Joined: Feb 2013
Posts: 154
Canada
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4.90" or 5.00" B/S on a Hemi 99. Not sure of Deck height though ??
Yes Todd Goodwin makes those...I have seen those at nearly 700 cubes. And I know there was one by a member on here for sale on RJ...$43k...Looked awesome. Would love to know more about them. Ive got the goodwin and its 648 cubes, and they use a chevy block. These engines are a 5.0 borespace and mopar doesn't make Its sitting in my shop. I have it listed for 40 with the racepak, carbs, converter etc etc. It'll sell for that or ill keep it on display. Those 655 hemi's and 636 cube deals arent for me, and id never want to make them over 604.... I mean think about it, there isn't an engine with a heavier piston then a hemi, and when you add stroke you are adding piston speed. If you can get it done with less cubes I would. My last street build was a 572, and my new one will be the same only because its not boosted. Now if it was a wedge engine, i might take the cubes. This would depend on how serious the build was, cylinder head, cam shaft, etc etc... I've drooled over that for a while, since it's based on a chevy block I'm guessing the rear bolt pattern is for 'glides / TH type transmissions ? The 655 we have is a pump gas N/A wedge deal. yes it is, but i have a glide for it as well.
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