Gen III AL block, big power gain! Ma Mopar paying racers!
#2480947
04/11/18 09:43 AM
04/11/18 09:43 AM
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Joined: Jan 2003
Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...
gregsdart
OP
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OP
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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I stopped buy Chuck Lofgrens shop yesterday for help with a trans. We got to talking about his DragPak FS/D Challenger. His car is spotless, both underneath and everywhere else. Just like his one owner 1970 Sixpak Cuda (!) Chuck put the newly allowed aluminum 6.1 block in the car, and picked up 35 hp. The old block only made 665 hp, the AL motor made 700! Pretty good gain IMHO. Now the problem is it carries the front wheels out to past the 60 clocks! His best et to date is 9.55, and he wound up with a class trophy in F Super Stock, entering in SS because he didn't have enough points to run in FS at the Nationals. Ma Mopar also wants all the DragPack cars at an upcoming event at Route 66 in Joliet, and is paying handsomely to get them there! Nice!
Last edited by gregsdart; 04/11/18 09:45 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481071
04/11/18 01:43 PM
04/11/18 01:43 PM
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Joined: Jan 2003
Posts: 19,363 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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The NEW aluminum MP block certainly seems to be contributing to a lot of performance gains. Including the first ever 7 second Factory Shootout Pass
"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: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481082
04/11/18 01:57 PM
04/11/18 01:57 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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So is it the block or not?
Confused in Peoria
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481088
04/11/18 02:03 PM
04/11/18 02:03 PM
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Joined: Jan 2003
Posts: 19,363 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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Maybe I did not use enough sarcasm or the right emoji Greg stated that the ONLY change was the block. Also what was credited for the first 7 second pass, the new aluminum block.
"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: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481133
04/11/18 03:17 PM
04/11/18 03:17 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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Is there ventilation between the main webbing above the main bearing and below the bores in those iron or aluminum blocks?
I noticed the LS guys are running ventilation in there to get some breathing back and forth and keep from having high and low pressure areas in the crank case so I went to look at my blocks and noticed on the BGE block there is vents there already between the center bores at least but they are not on the 5.7 blocks. I don't have a 6.1 block here now and have never got to look that close at any of the non-production blocks. There could be some other changes unrelated to the material that are helping HP production also.
There are lots more things related to material that can alter HP between the blocks than just ring seal. Temp should be more uniform allowing more compression(don't sound like they took advantage of that here). Vibrations should be dampened better allowing more stable valve train dynamics.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: Al_Alguire]
#2481137
04/11/18 03:21 PM
04/11/18 03:21 PM
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Joined: Feb 2005
Posts: 20,172 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,172
PA.
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I considered scraping my Keith Black aluminum block because I read on the Internet that I would lose horsepower by using it. I started buying 40 year old stock cast blocks again.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: pittsburghracer]
#2481140
04/11/18 03:32 PM
04/11/18 03:32 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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I considered scraping my Keith Black aluminum block because I read on the Internet that I would lose horsepower by using it. I started buying 40 year old stock cast blocks again. Ill pay you 50Cents per pound, I will cover shipping and throw in a case of beer just so you don't have to use that HP sucking device. If you are very prompt about shipping and the block is still useable in my 9 passenger wagon I will throw in a 76 440 6pk max wegee hemi block from a motor home.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481586
04/12/18 12:23 PM
04/12/18 12:23 PM
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Joined: Jan 2003
Posts: 19,363 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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Wasn't that part of what the "new" KB was going to be working on?
"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: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481705
04/12/18 04:16 PM
04/12/18 04:16 PM
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Joined: Jan 2003
Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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OP
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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I tried what I saw in a video, putting a snap gauge in a vertical cylinder bore of a stock block, so the tension of the gauge was all it was held in there by. I could squeeze the block and make it drop out. If I can do that, you have to wonder how much the blocks twist, flex and distort under severe loads.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Gen III AL block, big power gain! Ma Mopar paying racers!
[Re: gregsdart]
#2481756
04/12/18 05:51 PM
04/12/18 05:51 PM
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Joined: Dec 2005
Posts: 11,551 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,551
Fulton County, PA
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Hey, that's great for the guys who want to run a FS deal. What's Tony doing for those who don't have the budget to do that or just want to run a traditional S/SS class car?
If the results don't match the theory, change the theory.
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