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Which iron hemi block is best? #1680952 10/02/14 03:51 PM 10/02/14 03:51 PM
Joined: Apr 2012 Posts: 25 Wisconsin, Unites States T turbogmc OP member
turbogmc OP member T Joined: Apr 2012 Posts: 25 Wisconsin, Unites States	I was wondering which iron block hemi is the best as far as design and stregth? I have a 66' 426 hemi out of a 66 charger which is in perfect shape and has never been damaged in any way. My engine builder wants it for numbers reasons for his car and i have my choice between newer production mopar block or a world products block. I would rather him have the original hemi for numbers reasons and i plan on racing my 69' Roadrunner so i would rather risk damaging a "fake hemi" than damage the real thing. What are your thoughts? Thank you, Bret

Re: Which iron hemi block is best? [Re: turbogmc] #1680953 10/02/14 04:46 PM 10/02/14 04:46 PM
Joined: Apr 2005 Posts: 2,128 Salt Lake City C camastomcat top fuel
camastomcat top fuel C Joined: Apr 2005 Posts: 2,128 Salt Lake City	Quote: I was wondering which iron block hemi is the best as far as design and stregth? I have a 66' 426 hemi out of a 66 charger which is in perfect shape and has never been damaged in any way. My engine builder wants it for numbers reasons for his car and i have my choice between newer production mopar block or a world products block. I would rather him have the original hemi for numbers reasons and i plan on racing my 69' Roadrunner so i would rather risk damaging a "fake hemi" than damage the real thing. What are your thoughts? Thank you, Bret Good luck. The newer production block is a World block, and as far as I know, they are not available. You may be able to find someone with one, but they are not making them right now. I am using one of the last ones, and so far (5 runs) it's a nice piece.

Re: Which iron hemi block is best? [Re: camastomcat] #1680954 10/02/14 05:33 PM 10/02/14 05:33 PM
Joined: Apr 2004 Posts: 364 Houston, Texas S Slant6pak enthusiast
Slant6pak enthusiast S Joined: Apr 2004 Posts: 364 Houston, Texas	Did they stop making them for good? Or do they simply make them in limited runs? 2016 Challenger Scat Pack Shaker 1000 ci Brass Era Speedster project

Re: Which iron hemi block is best? [Re: Slant6pak] #1680955 10/02/14 05:39 PM 10/02/14 05:39 PM
Joined: Apr 2005 Posts: 2,128 Salt Lake City C camastomcat top fuel
camastomcat top fuel C Joined: Apr 2005 Posts: 2,128 Salt Lake City	Quote: Did they stop making them for good? Or do they simply make them in limited runs? I doubt it's for good, but it may be a few years and someone else will probably will be casting them.

Re: Which iron hemi block is best? [Re: Slant6pak] #1680956 10/02/14 05:41 PM 10/02/14 05:41 PM
Joined: Jan 2003 Posts: 5,137 East Aurora (Buffalo) NY RoadRunner master
RoadRunner master Joined: Jan 2003 Posts: 5,137 East Aurora (Buffalo) NY	Quote: Did they stop making them for good? Or do they simply make them in limited runs? Here is what I was told form more than one source. Tooling is sitting idle. No contractor to cast or machine has been selected. I was told in January that they would be up and running this summer, but not to hold my breath. I would guess we will not see any production until next year. Price of blocks went from $2500 to $5000 between January and April. I found a new block here at Moparts and jumped on it. I think there are aluminum blocks available. 68 Road Runner (383/4speed, post car w/decor pkg) - Major Project 69 Road Runner w/472 Hemi & 4 speed. 70 Challenger R/T SE EF8 w/ V9J, U - A32 - Major Project 2023 Ford Mach 1

Re: Which iron hemi block is best? [Re: RoadRunner] #1680957 10/02/14 05:57 PM 10/02/14 05:57 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	We have a few new iron blocks available.One is a 4.495 bore that sonic tested at or over .250 on all cylinders. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: Which iron hemi block is best? [Re: B G Racing] #1680958 10/02/14 07:12 PM 10/02/14 07:12 PM
Joined: May 2004 Posts: 12,383 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,383 Taxes & Virus's R-US, NY	Like eveyone said, they are near impossible to find. New in the crate I have been seeing some pretyy high prices for them. They stopped making them 2 years ago, and they are not likely to be back in production any time soon. I have one of the new World Blocks, and mine had two issues, fixed them and moved on. Pretty beefy compared to a stocker. Wonder what the going rate on an Indy Alum one is? '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: Which iron hemi block is best? [Re: Dragula] #1680959 10/02/14 11:15 PM 10/02/14 11:15 PM
Joined: Jul 2010 Posts: 1,845 Tampa D DusterDave top fuel
DusterDave top fuel D Joined: Jul 2010 Posts: 1,845 Tampa	If he wants your block bad enough, then see if he'll up the ante and trade him in exchange for a new aluminum block. You're going racing, so the lighter weight will be a good benefit. Can't hurt to try! Gone to the dark side with an LS3 powered '57 Chevy 210

Re: Which iron hemi block is best? [Re: DusterDave] #1680960 10/03/14 01:54 PM 10/03/14 01:54 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Best block is one you can buy! Worth a call, http://www.hpperformancellc.com/store#!/Cast-Iron-Hemi-Block/p/12528197/category=2880288 Says on their Website "in stock" R.

Re: Which iron hemi block is best? [Re: turbogmc] #1680961 10/03/14 02:17 PM 10/03/14 02:17 PM
Joined: Aug 2003 Posts: 43,097 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,097 Bend,OR USA	I'm going to assume that both blocks are the big bore versions, yes or no? If so then I would use the World block instead of the earlier casting Mopar block due to having a earlier 4.180 rough bore Mopar block that was very thin on the sonic testing, not so on any of the World blocks I've used and tested BTW, I did one small bore World hemi block and they are all siamese cylinder walls according to World, the earlier Mopar blocks weren't Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Which iron hemi block is best? [Re: Cab_Burge] #1680962 10/03/14 02:28 PM 10/03/14 02:28 PM
Joined: Jan 2004 Posts: 8,233 fredericksburg,va C cudaman1969 master
cudaman1969 master C Joined: Jan 2004 Posts: 8,233 fredericksburg,va	If your engine builder wants your block then he pays all cost for whitchever block you choose. Nice original blocks should fetch more than the newer ones.

Re: Which iron hemi block is best? [Re: cudaman1969] #1680963 10/03/14 03:37 PM 10/03/14 03:37 PM
Joined: Jan 2003 Posts: 3,103 Phila Pa S scatpacktom master
scatpacktom master S Joined: Jan 2003 Posts: 3,103 Phila Pa	For me it would all come down to the cylinder wall sonic test on that 66 block. If you are going to race it a bit it may not be the one you want

Re: Which iron hemi block is best? [Re: scatpacktom] #1680964 10/05/14 01:01 AM 10/05/14 01:01 AM
Joined: Apr 2012 Posts: 25 Wisconsin, Unites States T turbogmc OP member
turbogmc OP member T Joined: Apr 2012 Posts: 25 Wisconsin, Unites States	Initially, when i was going to build the 66' hemi, i had him send it to another shop to get sonic checked and i was told it checked beautiful. I never bothered to ask what thickness or anything. Later on, it ended up where he ended up with a 66' satellite and this motor is date coded for his car to make it seem like good a numbers match tribute. He offered up the idea and the more i thought about it, the more it made sense to me. We had a mutual understanding that i would get fair market value for my block and heads. So, with that, i planned on going with an improved block design (iron or aluminum) and more than likely edelbrock aluminum heads when im ready to talk to the bank. I would prefer an aluminum block i guess, i just need to shop around for a new one. Thank you all for your input. Bret

Re: Which iron hemi block is best? [Re: turbogmc] #1680965 10/05/14 07:03 PM 10/05/14 07:03 PM
Joined: Jan 2004 Posts: 8,233 fredericksburg,va C cudaman1969 master
cudaman1969 master C Joined: Jan 2004 Posts: 8,233 fredericksburg,va	Should have added about allumium blocks-heads, freind has a 604 and has weird thermo properties with the valve train and who knows what else. Couldn't run withend 5 hundreths back to back. I would stick with a new iron block and long arm, high comp if racing.

Re: Which iron hemi block is best? [Re: cudaman1969] #1680966 10/05/14 07:14 PM 10/05/14 07:14 PM
Joined: Apr 2005 Posts: 2,128 Salt Lake City C camastomcat top fuel
camastomcat top fuel C Joined: Apr 2005 Posts: 2,128 Salt Lake City	Quote: Should have added about allumium blocks-heads, freind has a 604 and has weird thermo properties with the valve train and who knows what else. Couldn't run withend 5 hundreths back to back. I would stick with a new iron block and long arm, high comp if racing. What kind of block? I've had 3 of them, KB, World, and another World aluminum block. Won races with all of them. That's a tune up issue IMO.

Re: Which iron hemi block is best? [Re: camastomcat] #1680967 10/05/14 07:20 PM 10/05/14 07:20 PM
Joined: Jul 2004 Posts: 487 D Dyno1 mopar
Dyno1 mopar D Joined: Jul 2004 Posts: 487	I talked to Dale Aldo last week, he said the new blocks would be available the 1st week of November. I hope he means 2014!

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