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440 engines #830188 10/15/10 06:20 AM 10/15/10 06:20 AM
Joined: Aug 2008 Posts: 347 FRANCE, Paris Chal340 OP enthusiast
Chal340 OP enthusiast Joined: Aug 2008 Posts: 347 FRANCE, Paris	I would like to make a 500 ci with a 440 engine block to replace my 340 in my Challenger. Are there differents 440 engine? I heard HP block. Thanks 70 Challenger, A66, 340 ci

Re: 440 engines [Re: Chal340] #830189 10/15/10 09:08 AM 10/15/10 09:08 AM
Joined: Oct 2007 Posts: 736 New York R/T1968R/T super stock
R/T1968R/T super stock Joined: Oct 2007 Posts: 736 New York	Go to this site....it will explain it all!! http://www.440source.com/blockinfo.htm

Re: 440 engines [Re: Chal340] #830190 10/15/10 09:13 AM 10/15/10 09:13 AM
Joined: Jan 2003 Posts: 75,082 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,082 U.S.S.A.	Quote: I would like to make a 500 ci with a 440 engine block to replace my 340 in my Challenger. Are there differents 440 engine? I heard HP block. Thanks The difference between an HP block and a non HP block is the 2 stamped letters H and P. They are exactly the same, you'll pay extra money for those 2 letters but gain NOTHING in strength.

Re: 440 engines [Re: JohnRR] #830191 10/15/10 09:17 AM 10/15/10 09:17 AM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	Quote: Quote: I would like to make a 500 ci with a 440 engine block to replace my 340 in my Challenger. Are there differents 440 engine? I heard HP block. Thanks The difference between an HP block and a non HP block is the 2 stamped letters H and P. They are exactly the same, you'll pay extra money for those 2 letters but gain NOTHING in strength. what he said...if you are going to stroke it get the cheapest 440 block you can find. Not real smart paying $500 (or more) for a 69 block when you can get a 74 block for $250. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: 440 engines [Re: JohnRR] #830192 10/15/10 09:17 AM 10/15/10 09:17 AM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	Quote: Quote: I would like to make a 500 ci with a 440 engine block to replace my 340 in my Challenger. Are there differents 440 engine? I heard HP block. Thanks The difference between an HP block and a non HP block is the 2 stamped letters H and P. They are exactly the same, you'll pay extra money for those 2 letters but gain NOTHING in strength. I agree...internals gave the HP a few extra ponies..plus a few articles support the low compression blocks of the 70's being stronger than the 60's blocks...I can't confirm that but I also am running a 440/1976/ stroked and bored to 498 for over 4 seasons

Re: 440 engines [Re: terzmo] #830193 10/15/10 09:51 AM 10/15/10 09:51 AM
Joined: Aug 2005 Posts: 4,799 ILL M MLR426 master
MLR426 master M Joined: Aug 2005 Posts: 4,799 ILL	I personally would start with an older pre-73 block with the old deck design. Just what I would do. logan426 Last edited by Logan426; 10/15/10 09:56 AM.

Re: 440 engines [Re: MLR426] #830194 10/15/10 09:54 AM 10/15/10 09:54 AM
Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL Commando1 master
Commando1 master Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL	Quote: I personally would start with an older pre-73 block with the old deck design. To many varibles with the thinner decked and walled later blocks. logan426 Later blocks being "thin wall" has been proven to be a total myth. I have never heard of the term "thinner decked".

Re: 440 engines [Re: Commando1] #830195 10/15/10 10:04 AM 10/15/10 10:04 AM
Joined: Aug 2005 Posts: 4,799 ILL M MLR426 master
MLR426 master M Joined: Aug 2005 Posts: 4,799 ILL	Quote: Quote: I personally would start with an older pre-73 block with the old deck design. To many varibles with the thinner decked and walled later blocks. logan426 Later blocks being "thin wall" has been proven to be a total myth. I have never heard of the term "thinner decked". I understand they say the myth of thinner walled blocks is a total myth, I totally disagree with that. We have sonic checked blocks for hi-po builds and have had to limit the over bore because of core shift etc that causes thinner walls. People can do what ever they want its their money. And in my own opinion the later blocks with the re-design coolant passage decks are far more likely to detort at the surface due to lack of strength, that's why I prefer the older block and yes they sometimes have issues also. logan426 Last edited by Logan426; 10/15/10 10:06 AM.

Re: 440 engines [Re: MLR426] #830196 10/15/10 01:40 PM 10/15/10 01:40 PM
Joined: Feb 2005 Posts: 957 MI, Lapeer M maximus super stock
maximus super stock M Joined: Feb 2005 Posts: 957 MI, Lapeer	Stay away from the 1967 year blocks. They were prone to cracking the first year. If you look on the 1968 and later 440 blocks they have a rib cast in the side of the block that looks like a big H, this is not on the 67 blocks. I have built many 440/500 motors and have always used 68 to 73 blocks without any problems. Just my input from experience that it at that.

Re: 440 engines [Re: maximus] #830197 10/15/10 03:48 PM 10/15/10 03:48 PM
Joined: Aug 2008 Posts: 347 FRANCE, Paris Chal340 OP enthusiast
Chal340 OP enthusiast Joined: Aug 2008 Posts: 347 FRANCE, Paris	OK thanks guys, I'm going to read infos on 440source site. 70 Challenger, A66, 340 ci

Re: 440 engines [Re: Chal340] #830198 10/15/10 05:31 PM 10/15/10 05:31 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo Too Many Posts
DaytonaTurbo Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	I've always used the mid-late 70's 440 blocks without a problem. I don't believe in the thin wall myth. That's a chevy thing. Just like cast cranks being only good for scrap metal is a chevy thing. Just like "needing" 4-bolt mains to make over 150hp is a chevy thing. The mid 70's and up 440's got the improved larger thrust bearing as well as a small amount of extra webbing material on the outside of the block if memory serves.

Re: 440 engines [Re: DaytonaTurbo] #830199 10/15/10 05:33 PM 10/15/10 05:33 PM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	you can take a cast crank 440 and make 500hp with not too much of a problem...and beat on it.

Re: 440 engines [Re: Mr.Yuck] #830200 10/15/10 06:43 PM 10/15/10 06:43 PM
Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL Commando1 master
Commando1 master Joined: Mar 2007 Posts: 9,336 South-Central (Sebring), FL	Quote: you can take a cast crank 440 and make 500hp with not too much of a problem...and beat on it. I agree. I love these blocks. Except for one teenie-weenie detail: They spin bearings like babies soil diapers.

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