Re: R3 Block Question
[Re: dart69bigblock]
#1579004
02/14/14 06:44 PM
02/14/14 06:44 PM
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Joined: Jan 2003
Posts: 6,266 Renton Washington
Triple Threat
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master
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Posts: 6,266
Renton Washington
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Do you already have any parts you would like to use? Heads, camshaft etc?
Factory angle is 59*, 48* blocks also exist for some of the better heads on the market. If you are starting from scratch I would reccomend a 48 degree block. Or buying someones motor thats already together.
I have a 59 degree R3 block with a solid roller. You definitely can run a roller cam, but there is some work required to the valley area needed for clearance.
Last edited by Triple Threat; 02/14/14 06:46 PM.
-Dustin 67 Dart, 9 second, 392" G3 Hemi 68 Barracuda 340 F/SA
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Re: R3 Block Question
[Re: dart69bigblock]
#1579007
02/14/14 10:46 PM
02/14/14 10:46 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Joined: Jun 2003
Posts: 52,972
Romeo MI
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Rollers work fine in the 59*(just like a stock block) but the 48* is better... you would be building a stock block(shorter deck) with thicker cyl walls EDIT I would sonic check it but if its decent start at a 4.185 bore... dont mess around with 4.125 bore like I did.... see if you can find some 59* W-9s
Last edited by MR_P_BODY; 02/14/14 10:53 PM.
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Re: R3 Block Question
[Re: RAY1969CARS]
#1579011
02/15/14 12:34 PM
02/15/14 12:34 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Romeo MI
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Quote:
how hard is it to put 59 degree heads on a 48 degree 9.200 deck ???? Could a 59 degrees intake be used ?? Or would I have to mill a w8 /w9 intake ?
Remember that its just the lifter angle thats changing.. the deck is still the same but shorter... Ryan (shady dell) did it but you have a lot of material to be removed in the push rod area and off set lifters
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Re: R3 Block Question
[Re: MR_P_BODY]
#1579012
02/15/14 03:09 PM
02/15/14 03:09 PM
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Joined: Apr 2007
Posts: 1,390 CA.
RAY1969CARS
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,390
CA.
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Quote:
Quote:
how hard is it to put 59 degree heads on a 48 degree 9.200 deck ???? Could a 59 degrees intake be used ?? Or would I have to mill a w8 /w9 intake ?
Remember that its just the lifter angle thats changing.. the deck is still the same but shorter... Ryan (shady dell) did it but you have a lot of material to be removed in the push rod area and off set lifters
what intake did he use ?
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Re: R3 Block Question
[Re: RAY1969CARS]
#1579013
02/15/14 03:47 PM
02/15/14 03:47 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
how hard is it to put 59 degree heads on a 48 degree 9.200 deck ???? Could a 59 degrees intake be used ?? Or would I have to mill a w8 /w9 intake ?
Remember that its just the lifter angle thats changing.. the deck is still the same but shorter... Ryan (shady dell) did it but you have a lot of material to be removed in the push rod area and off set lifters
what intake did he use ?
I dont recall... the build might be on his site... I dont remember what heads he used(that would make a difference on which intake)
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Re: R3 Block Question
[Re: J_BODY]
#1579015
02/16/14 03:48 AM
02/16/14 03:48 AM
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Joined: Mar 2005
Posts: 68 Omaha, NE
dart69bigblock
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Omaha, NE
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Quote:
twins and 1000+ hp.... I'm betting in your research you are going to find that the 48* block and the heavier W8 head will be the weapons of choice.
This is exactly what I have found. At least about the block. I have not done too much research on the heads yet.
Thank you for all the input guys. Is there any websites or dealers to get the best deal on an R3 block?
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Re: R3 Block Question
[Re: dart69bigblock]
#1579016
02/16/14 02:52 PM
02/16/14 02:52 PM
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Joined: Jan 2005
Posts: 3,639 Oakland, MI
dizuster
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Posts: 3,639
Oakland, MI
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It depends how much the + means in 1000hp+. If you're talking right around 1000hp, you don't need a 48 degree block or W9 heads to do it. Around 15psi will basically double the HP of a N/A motor (Give 'er take a little in some cases). So to make 1000hp, you really only need around 500hp NA to do it. Do you need a W9 head to do that? Of course not. When I added it up before for my next project, I actually found at that power level the Hemi was the best bang for the buck. Blocks will withstand 1000hp, 6.1L cranks are cheap and will take that power, rocker arms are strong, and the heads will flow plenty enough to do it. A low deck would also be a good choice because of the block strength, but you'll end up spending a bit more for crank/heads/rockers to do it. Granted you'll have some expense with the EFI stuff, but the savings on the block/crank/heads/rockers more then offset it. Want to make significantly more then 1000hp? Then the R3 combo will start to win the price war. P.S. If you're talking about my block on race junk, it's already sold. http://www.racingjunk.com/Blocks/182127210/Mopar-R3-Block-Brand-New.html
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Re: R3 Block Question
[Re: dizuster]
#1579018
02/16/14 04:19 PM
02/16/14 04:19 PM
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Joined: Nov 2009
Posts: 3,082 St. Paul , Mn.
tubtar
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St. Paul , Mn.
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Quote:
It depends how much the + means in 1000hp+. If you're talking right around 1000hp, you don't need a 48 degree block or W9 heads to do it.
But you will want an R block or equivalent. I suppose the 340 resto block is beefy enough. But at this level , I think the natural choice is 48 degree. Especially if you have an eye on adding more oats down the road.
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Re: R3 Block Question
[Re: tubtar]
#1579019
02/16/14 06:42 PM
02/16/14 06:42 PM
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Joined: Jan 2005
Posts: 3,639 Oakland, MI
dizuster
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Oakland, MI
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Don't worry about the packaging space. There is plenty of room with any option (big block, hemi, or small block) to make it work. How quick/fast are you trying to go? 1000hp will get a regular 3300lb car down to 8.50 (or better). Beyond that, it needs a funny car style cage, and a lot more certification work. I'm all for planning ahead, but you are talking about a CONSIDERABLE cost difference between R3/W9 1500hp motor, and a Low Deck/Gen 3 1000hp motor. Other then the FEW people I have heard on THIS board "saying" there is an issue... I do not believe that there really is a 6.1L oiling issue. Really... do a google search and try to find reference to a 6.1L crank cross drilled issue that didn't stem from this board. BES told me they have them running over 1000hp without an issue. HHP said the same thing. Remember... with the turbo stuff it makes so much torque you don't need to turn killer RPM to make power. My 75mm turbo on a iron headed 360, made 700+ at 5600rpm. The cam was only 224@.050" with .499" lift. So at 6500~7000rpm, what 6.1L oiling issue would you be worried about anyway?
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Re: R3 Block Question
[Re: dizuster]
#1579020
02/16/14 07:12 PM
02/16/14 07:12 PM
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Joined: Oct 2007
Posts: 3,978 Hilltown Pa
1967dartgt
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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Just curious what factory low deck can take 1000 hp?
Brett Miller W9 cnc'd heads STR Chassis fabraction
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