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Re: 655 Hemi 4.84 Bore Space Engine [Re: wesw] #1368112
01/26/13 01:07 AM 01/26/13 01:07 AM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
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hustlin hoosier  Offline
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Posts: 174
We are building another 68 barracuda for local racing we hope to be under 2600 lbs and we were going to put in a procharged wedge but it depends on the development of this engine. It take 4.70 to be in the game at home . In the old car if I can get in the 7's we might have a chanceif we put the engine in the new car.
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368113
01/26/13 10:45 AM 01/26/13 10:45 AM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
J
jim sciortino Offline
top fuel
jim sciortino  Offline
top fuel
J

Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
1359 (and counting) is real nice power.

Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368114
01/26/13 07:50 PM 01/26/13 07:50 PM
Joined: Dec 2006
Posts: 3,667
Arizona
C
Chris'sBarracuda Offline
master
Chris'sBarracuda  Offline
master
C

Joined: Dec 2006
Posts: 3,667
Arizona
Neat stuff but..

This looks like a permanent blown head gasket..


Chris..

7562451-HemiBuild.jpg (582 downloads)
Re: 655 Hemi 4.84 Bore Space Engine [Re: Chris'sBarracuda] #1368115
01/27/13 12:35 AM 01/27/13 12:35 AM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
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hustlin hoosier  Offline
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Joined: Jan 2013
Posts: 174
Why do you say that?
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368116
01/27/13 12:59 AM 01/27/13 12:59 AM
Joined: Feb 2007
Posts: 970
Backwater, PA
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bwdst6 Offline
Bob George Racing #1 Fan
bwdst6  Offline
Bob George Racing #1 Fan
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Joined: Feb 2007
Posts: 970
Backwater, PA
Quote:

Why do you say that?

not much material between cylinders

This post is available in double vision where drunk.
Re: 655 Hemi 4.84 Bore Space Engine [Re: bwdst6] #1368117
01/27/13 01:06 AM 01/27/13 01:06 AM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
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hustlin hoosier  Offline
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Posts: 174
It is only .020 less than any 4.50 bore mopar. We have run this same bore spacing for 3 yrs in our 655 wedge with no problem.
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368118
01/27/13 02:24 AM 01/27/13 02:24 AM
Joined: Dec 2006
Posts: 3,667
Arizona
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Chris'sBarracuda Offline
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Joined: Dec 2006
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Arizona
Quote:

Why do you say that?



I'm talking about the material removed from the valley for the push rods..

Nothing left of the deck..

I could be wrong, just looks scary to me..


Chris..

Re: 655 Hemi 4.84 Bore Space Engine [Re: Chris'sBarracuda] #1368119
01/27/13 12:05 PM 01/27/13 12:05 PM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
member
hustlin hoosier  Offline
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Joined: Jan 2013
Posts: 174
Head gaskets only seat on sleave not on alum, This is a dry sleave motor. The scary part has always been between the cylinders.
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368120
01/31/13 02:06 AM 01/31/13 02:06 AM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
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jim sciortino Offline
top fuel
jim sciortino  Offline
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
I really like this build....

I've been considering a build with a 4.56 x 4.375 short to get cross rpm in the 9000 range and keep piston speed around 6500fps. Shorten the deck, SS style lobe relocation, keyways, individual shaft rockers, Braswells, dry sump, "good" ring stack w/tricky gaps ( ), piston guided rod, etc.....the bells and whistles.

See if Eric can send me raw a set of Milleniums and do some manipulating with chamber volume, port shapes, etc.....
Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368121
01/31/13 11:29 AM 01/31/13 11:29 AM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
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jim sciortino Offline
top fuel
jim sciortino  Offline
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
I'm curious about the where the 655 makes it's peak numbers and is there going to be additional dyno time???
Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368122
01/31/13 11:46 AM 01/31/13 11:46 AM
Joined: Jan 2003
Posts: 1,436
Oklahoma City OK
Cudajon Offline
pro stock
Cudajon  Offline
pro stock

Joined: Jan 2003
Posts: 1,436
Oklahoma City OK
Is that a raised Cam block? Amazing how close everything is to the sleeves. I'm old enough to remember spending hours "O" ringing cylinders and I see this and it's scary.


http://www.youtube.com/watch?v=4J3K94cRC1c
Re: 655 Hemi 4.84 Bore Space Engine [Re: Cudajon] #1368123
01/31/13 10:01 PM 01/31/13 10:01 PM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
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Posts: 174
It is a raised cam block by Indy. We made 1359 at 7300 and at 7500 we dropped off to 1355, peak torque was 1017 at 6800. We are changing cam acarbs. we think with the lobe seperation we are running it should have continued to buid hp to 7800. Something has to be stopping it , our guess it either the cam or the carbs. I plan at least 2 more dyno sessions. Then the track.Pete or Chuck if you se this you are welcome to post the dyno sheet.

Last edited by hustlin hoosier; 02/01/13 03:08 PM.
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368124
01/31/13 11:37 PM 01/31/13 11:37 PM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
J
jim sciortino Offline
top fuel
jim sciortino  Offline
top fuel
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
Quote:

It is a raised cam block by Indy. We made 1359 at 7200 and at 7500 we dropped off to 1354, peak torque was 1017 at 6800. We are changing cam acarbs. we think with the lobe seperation we are running it should have continued to buid hp to 7800. Something has to be stopping it , our guess it either the cam or the carbs. I plan at least 2 more dyno sessions. Then the track.Pete or Chuck if you se this you are welcome to post the dyno sheet.

Nice.....

Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368125
01/31/13 11:41 PM 01/31/13 11:41 PM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
J
jim sciortino Offline
top fuel
jim sciortino  Offline
top fuel
J

Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
Quote:

Quote:

It is a raised cam block by Indy. We made 1359 at 7200 and at 7500 we dropped off to 1354, peak torque was 1017 at 6800. We are changing cam acarbs. we think with the lobe seperation we are running it should have continued to buid hp to 7800. Something has to be stopping it , our guess it either the cam or the carbs. I plan at least 2 more dyno sessions. Then the track.Pete or Chuck if you se this you are welcome to post the dyno sheet.

Nice.....

With the paeks that close together, if you can get it to peak around 7800, it could be 1400+.

Either way, that is impressive power.
Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368126
02/01/13 12:57 PM 02/01/13 12:57 PM
Joined: Jan 2004
Posts: 4,866
North of Detroit
HemiDart68 Offline
master
HemiDart68  Offline
master

Joined: Jan 2004
Posts: 4,866
North of Detroit
Excellent work

In God we trust, all others pay cash. www.lightnens.com (Home of the world's fastest Paint Job)
Re: 655 Hemi 4.84 Bore Space Engine [Re: HemiDart68] #1368127
02/02/13 04:42 PM 02/02/13 04:42 PM
Joined: Jan 2013
Posts: 174
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hustlin hoosier Offline
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Posts: 174
We are changing cam, carbs, valve springs , rockers and valve seats on the intakes. We will be back on the dyno in a couple of weeks.

Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368128
02/02/13 05:49 PM 02/02/13 05:49 PM
Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
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jim sciortino Offline
top fuel
jim sciortino  Offline
top fuel
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Joined: Apr 2007
Posts: 2,028
Trumbull,CT.
Quote:

We are changing cam, carbs, valve springs , rockers and valve seats on the intakes. We will be back on the dyno in a couple of weeks.

Sweet.....

I know Yellow Bullet isn't for everyone, but this should be posted in Chris Uratchko's N/A section. I'm sure alot of people would like to read about it.....especially the guys who like HEMIs, who just happen to be some of the sharpest cats over there......like Lobes and George Bryce.
Re: 655 Hemi 4.84 Bore Space Engine [Re: jim sciortino] #1368129
02/03/13 12:06 PM 02/03/13 12:06 PM
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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camastomcat Offline
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Salt Lake City
Some one may have already asked this but....what's this going in? And will we have results from the track? It's some impressive dyno #'s for sure.
Re: 655 Hemi 4.84 Bore Space Engine [Re: hustlin hoosier] #1368130
02/03/13 02:09 PM 02/03/13 02:09 PM
Joined: Aug 2008
Posts: 78
Canada/USA
R
ragingram Offline
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Joined: Aug 2008
Posts: 78
Canada/USA
Quote:

We are changing cam, carbs, valve springs , rockers and valve seats on the intakes. We will be back on the dyno in a couple of weeks.



Why are you having to change valve seats?
Re: 655 Hemi 4.84 Bore Space Engine [Re: ragingram] #1368131
02/03/13 02:30 PM 02/03/13 02:30 PM
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto Offline
Trophy Winner
bigtimeauto  Offline
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Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
Quote:

Quote:

We are changing cam, carbs, valve springs , rockers and valve seats on the intakes. We will be back on the dyno in a couple of weeks.



Why are you having to change valve seats?



i would imagine they are the wrong material for the valve being used

BB, TT5,Procharged 3300lb Street Car 4.79/154
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