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Re: Cleaning out water passages in my 383 [Re: 383man] #1066041 08/31/11 12:10 PM 08/31/11 12:10 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	You do know you can sleeve a cracked cylinder, right? It's a no-brainer. Decent 340 blocks have value and I sure wouldn't mind spending $100 to get one sleeved, if I had a 340 block at all! I have a hard time believing that anything sitting on a garage floor would crack from "neglect". That's just a little too far into the "Magic Kingdom" for me. Now if it was sitting there with water in a cylinder and it froze that's a different story. But blocks don't "know" if you're neglecting them or not. They don't feel neglected because they're just lumps of cast iron. And what kind of stress would there be sitting on the floor? Rant Over, R.

Re: Cleaning out water passages in my 383 [Re: dogdays] #1066042 08/31/11 01:08 PM 08/31/11 01:08 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: You do know you can sleeve a cracked cylinder, right? It's a no-brainer. Decent 340 blocks have value and I sure wouldn't mind spending $100 to get one sleeved, if I had a 340 block at all! I have a hard time believing that anything sitting on a garage floor would crack from "neglect". That's just a little too far into the "Magic Kingdom" for me. Now if it was sitting there with water in a cylinder and it froze that's a different story. But blocks don't "know" if you're neglecting them or not. They don't feel neglected because they're just lumps of cast iron. And what kind of stress would there be sitting on the floor? Rant Over, R. Yes I know they can be sleeved. Mine sat in the car with 15 year old coolant in it. No it never froze because I had anti freeze in it. But it sat there for all those years and I never changed the coolant. I figured that didn't help and caused extra corrosion leading to the crack? I'm lucky as I have 3 more good 340 blocks plus the cracked one. I didn't need to have it sleeved. Been saving them since 1976 when I wrecked/totaled my first 340 challenger. Then totaled my second 340 challenger 2 years later. Still have both motors. Yea I can't drive ... Last edited by Challenger 1; 08/31/11 01:48 PM.

Re: Cleaning out water passages in my 383 [Re: Challenger 1] #1066043 08/31/11 07:47 PM 08/31/11 07:47 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	YOU sure the block cracked and didn't rust thru the cylinder? had that happen on the flathead in the 38 Plymouth I bought. If it weren't for that I think I could of gotten it running. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: Cleaning out water passages in my 383 [Re: Supercuda] #1066044 08/31/11 09:02 PM 08/31/11 09:02 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	OP has a much harder time since his engine is assembled. I did my bare block 360 on the engine stand with all core plugs removed, outside on a hot day with a garden hose and coat hangers, etc and compressed air. VERY messy job, got orange crap flying everywhere. But I was actually pretty pleased, all the sludge and major scale came out of the block, casting was 90% clean when I was done, then I needed about an 1/2 hour shower myself... Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: Cleaning out water passages in my 383 [Re: Supercuda] #1066045 08/31/11 09:11 PM 08/31/11 09:11 PM
Joined: Jun 2004 Posts: 893 Tustin, CA P pishta super stock
pishta super stock P Joined: Jun 2004 Posts: 893 Tustin, CA	You guys running acid in the block, make sure you run a dose of baking soda though it or something with a lower PH to neutralize the high PH acid. I think baking soda and water is a neutralizer. If not, it can sit in there and keep eating if you dont put it back into service ASAP. Check on slantsix.org for Dutra wisdom... 12 Grand Caravan 06 T&C 02 T&C 96 Breeze 65 Barracuda "S"

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