Re: Concreted in Aluminum Indy blocks.
[Re: racerx]
#3094834
11/16/22 11:29 PM
11/16/22 11:29 PM
|
Joined: Aug 2003
Posts: 43,734 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,734
Bend,OR USA
|
I wouldn't waste my time or money filling any water block for drag racing or any other use One of the main reasons I'm against using concrete based fillers is all concrete shrinks while curing, pulling away from the block in all ways, cylinders and all other surfaces. Another thing about partial fills is the block heat being differently above the fill than below it., I dyno a 1971 340 NHRA stocker motor that Greg Luneack (SP?) built for the customer, that block was about a 3/4 fill. it was slightly below the water inlet holes on the front of the block from the water pump. They like to race it with 130 F water temps so we were doing that on the engine dyno, we used a laser heat gun to measure the tempts of the block and heads, the heads read 130 F after several pulls and the block read 180F below the water in the block down in were the fill was Not good on the ring seal, HUH There are some composite fillers that may not shrink when curing, but which type and brand I have no idea of and I have never heard much about them either How much power are you wanting to make?
Last edited by Cab_Burge; 11/17/22 03:12 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: birdtracker]
#3094896
11/17/22 10:02 AM
11/17/22 10:02 AM
|
Joined: Mar 2003
Posts: 2,540 PA
moparacer
master
|
master
Joined: Mar 2003
Posts: 2,540
PA
|
Pretty sure we used that Rockblock in one of mine once because of the quick cure time. Pulled it down a year or so later and it had shrank.
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 8.70s-152 414 cid SB Dragster 7.65-174
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: DoubleD]
#3094905
11/17/22 10:53 AM
11/17/22 10:53 AM
|
Joined: Jan 2003
Posts: 13,493 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,493
Marion, South Carolina [><]
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one If you need to concrete an aftermarket aluminum block...then you are starting w/ the wrong block. As much as aluminum blocks move around, filling one w/ concrete is not something I'd be doing.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: an8sec70cuda]
#3094906
11/17/22 10:56 AM
11/17/22 10:56 AM
|
Joined: Jan 2022
Posts: 194 Connellsville
71Demon528
member
|
member
Joined: Jan 2022
Posts: 194
Connellsville
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one If you need to concrete an aftermarket aluminum block...then you are starting w/ the wrong block. As much as aluminum blocks move around, filling one w/ concrete is not something I'd be doing. Agreed
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: DoubleD]
#3094907
11/17/22 11:01 AM
11/17/22 11:01 AM
|
Joined: Jan 2003
Posts: 10,092 MN
JERICOGTX
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,092
MN
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one Because an aluminum block will move around some. My INDY block is now half filled with Rock Block. It was mainly done to help stiffen the block up, as it was previously damaged. I was told an aluminum block will not pull vacuum like a iron block, but I was able to pull a steady 10lbs, at idle, and went over 20 before adjusting the relief valve.
69 GTX
68 Road Runner
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: an8sec70cuda]
#3094925
11/17/22 11:47 AM
11/17/22 11:47 AM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one If you need to concrete an aftermarket aluminum block...then you are starting w/ the wrong block. As much as aluminum blocks move around, filling one w/ concrete is not something I'd be doing. I'm trying to determine if i going to pull the trigger on an Indy Maxx block on a boosted setup (short deck) Indy rated there blocks to 1500 HP i'm not a big fan of aluminum moving around, but i still will like to keep it streetable I'm in the research stages now reason for this post,......Thanks .... lots of interesting opinion here
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: Cab_Burge]
#3094927
11/17/22 11:52 AM
11/17/22 11:52 AM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: JERICOGTX]
#3094932
11/17/22 11:55 AM
11/17/22 11:55 AM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one Because an aluminum block will move around some. My INDY block is now half filled with Rock Block. It was mainly done to help stiffen the block up, as it was previously damaged. I was told an aluminum block will not pull vacuum like a iron block, but I was able to pull a steady 10lbs, at idle, and went over 20 before adjusting the relief valve. ....How is that block holding up for you? And at what power level?
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: racerx]
#3094992
11/17/22 02:41 PM
11/17/22 02:41 PM
|
Joined: Jan 2003
Posts: 10,092 MN
JERICOGTX
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 10,092
MN
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one Because an aluminum block will move around some. My INDY block is now half filled with Rock Block. It was mainly done to help stiffen the block up, as it was previously damaged. I was told an aluminum block will not pull vacuum like a iron block, but I was able to pull a steady 10lbs, at idle, and went over 20 before adjusting the relief valve. ....How is that block holding up for you? And at what power level? Well it only has dyno time, and it made 870hp.
69 GTX
68 Road Runner
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: racerx]
#3095039
11/17/22 05:05 PM
11/17/22 05:05 PM
|
Joined: Jan 2003
Posts: 4,806 Moved to N.E. Tennessee
GomangoCuda
master
|
master
Joined: Jan 2003
Posts: 4,806
Moved to N.E. Tennessee
|
i still will like to keep it streetable Is that desire actually compatible with a filled block?
Last edited by GomangoCuda; 11/17/22 05:12 PM.
In theory, there is no difference between theory and practice. In practice, there is.
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: JERICOGTX]
#3095067
11/17/22 07:17 PM
11/17/22 07:17 PM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
Why would anybody fill an aluminum block - seems counter productive and a waste of time - I see no gain to be had. If you want a solid block (no water jacket) order one Because an aluminum block will move around some. My INDY block is now half filled with Rock Block. It was mainly done to help stiffen the block up, as it was previously damaged. I was told an aluminum block will not pull vacuum like a iron block, but I was able to pull a steady 10lbs, at idle, and went over 20 before adjusting the relief valve. ....How is that block holding up for you? And at what power level? Well it only has dyno time, and it made 870hp.
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: birdtracker]
#3095341
11/18/22 08:30 PM
11/18/22 08:30 PM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
for my use I wish I could of got a filled block. I found this water block and after 3 different pressure tests and having the sleeves installed, cam bearings, line bored, finished honed and then assembled found out it leaked coolant into the oil. So then after another 6 month go around of trying sealers and changing the oil and cleaning out valve covers, oil, pan and filter, I decided to fill it to the bottom of the water pump opening. No coolant, just a oil heater in the oil pan to warm it up before running. I made 3 back to back to back 1/4 mile passes and oil temps never got over 190 degrees. So the answer to why fill an aluminum block is how deep are you into it. Some day if I have to take a cylinder head off I will look and see how it lasted.Birdtracker Interesting here what fuel do you run and was this block ever see street time?
|
|
|
Re: Concreted in Aluminum Indy blocks.
[Re: birdtracker]
#3095526
11/19/22 02:32 PM
11/19/22 02:32 PM
|
Joined: Aug 2008
Posts: 4,132 Mo.
racerx
OP
master
|
OP
master
Joined: Aug 2008
Posts: 4,132
Mo.
|
I had an iron block 440 that was filled to the top of the freeze plugs that I drove on the street thousands of miles with no heat related problems. With all the aluminum blocks out there I can't see an issue with a 1/2 fill and running it . Birdtracker Birdtracker.....with the thermal expansion of aluminum block and concrete, have you notice any issues with the concrete separating inside or around the cylinders or for that question anyone have experience this?
|
|
|
|
|