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R3 low deck ????
#688791
05/04/10 10:21 PM
05/04/10 10:21 PM
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Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
10 o to go
OP
"Happy Don"
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OP
"Happy Don"
Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
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I've run stocks blocks for many years but I think I'm starting to push the boundry's with strokers and C.I . I have a line on a R3 9.20 low deck .Pros and cons on these verses R3 9.60 block. Price is cheap I believe. Takes a special  Timing cover its included . They say can be 4.220 bored What crank can be put in ? 59 degree block same issues on cam rocker angles. what special intake is needed ? Is this a block that will work ,cost effective for drag racing . I have custom pieces for the 418 in motor now callies crank, compstar rods, probe pistons studded 2 bolt mains . Educate me please . Don
2009 418" build dan smith built
new 9.96 131.82
6.23 108
1.30 60 foot
best to date 9/15/09
8in 727 430 dana 2860 lb 3040 lb w driver
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Re: R3 low deck ????
[Re: 10 o to go]
#688792
05/04/10 10:44 PM
05/04/10 10:44 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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You say this R3 is a 59* block.... thats too bad, a nice 48* would have been better...... any ways, your engine parts will work on it... is it a siamese block and is it a wet sump or dry sump block. The intakes would need to be trimmed to fit the shorter block (if they can be cut that much) EDIT also the R3 will have 4 bolt mains and will have 2 extra bolts per cyl for head bolts(those 2 are 3/8 
Last edited by MR_P_BODY; 05/04/10 10:48 PM.
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Re: R3 low deck ????
[Re: MR_P_BODY]
#688793
05/04/10 10:57 PM
05/04/10 10:57 PM
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Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
10 o to go
OP
"Happy Don"
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OP
"Happy Don"
Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
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Thanks Mike I haven't seen it yet .So what block numbers will I look for ? Siamese block will thier be a different external oiling provision .
I'm wondering on cubic inchs and not twisting high .I'm shifting the 418 at 6600 .
Where does crank stroke and and bore become marginal on a 59 degree motor . I'm not really wanting to spin it more than 7000 with a solid cam and get into valve train issues .
Thanks Don
2009 418" build dan smith built
new 9.96 131.82
6.23 108
1.30 60 foot
best to date 9/15/09
8in 727 430 dana 2860 lb 3040 lb w driver
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Re: R3 low deck ????
[Re: 10 o to go]
#688794
05/05/10 07:54 AM
05/05/10 07:54 AM
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Joined: Jan 2003
Posts: 6,148
Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,148
Melbourne , Australia
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The push rod angle on the 9.200" 59* blocks is pretty horrible, hence why they are quite cheap to buy. How much RPM are you planning?
AL....
Alan Jones
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Re: R3 low deck ????
[Re: RyanJ]
#688799
05/05/10 12:52 PM
05/05/10 12:52 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
If it's a 59* 9.20 Siamese, 99% chance it has the wrong cam tunnel in it (machined accidentally by MP for 48* 1.998" babbit cam bearings)
Check rear cam journal hole in block, if it's big (same diameter as front #1 cam hole), it's a 48 tunnel, if it is normal SB Mopar (small) then it would be a correctly machined block (very rare in those 59 9.20's)
No cam cores exist for 1.998" journals & 59 degree bank angle & lifter bore spacing, which means block is almost useless (without a custom $900 cam core or converting block to 48* lifter bores) That's usually why those blocks sell for so cheap.
Wow... thats good to know Ryan.... that would be a
COSTLY cam
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Re: R3 low deck ????
[Re: SB449VALIANT]
#688801
05/05/10 01:15 PM
05/05/10 01:15 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I know who can plug those 59* bores and make them 48*.....  
I was thinking about sleeveing the cam bores... I know
they are different diameters but that would have to be
cheaper than a $900 cam(plus I can do the sleeves myself)
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Re: R3 low deck ????
[Re: SB449VALIANT]
#688803
05/05/10 01:22 PM
05/05/10 01:22 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
see Mr P. 
What is done there... did they press a plug in the
old bore then re-bore to the 48*... whats with the
little screw or what ever it is
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Re: R3 low deck ????
[Re: MR_P_BODY]
#688804
05/05/10 01:26 PM
05/05/10 01:26 PM
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Joined: Feb 2005
Posts: 1,418
Mcallen, TX
SB449VALIANT
pro stock
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pro stock
Joined: Feb 2005
Posts: 1,418
Mcallen, TX
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Quote:
Quote:
see Mr P.
What is done there... did they press a plug in the
old bore then re-bore to the 48*... whats with the
little screw or what ever it is
Yeap that's a pretty nice fix...it looks simple? not for me..
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Re: R3 low deck ????
[Re: MR_P_BODY]
#688806
05/05/10 01:35 PM
05/05/10 01:35 PM
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Joined: Feb 2005
Posts: 1,418
Mcallen, TX
SB449VALIANT
pro stock
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pro stock
Joined: Feb 2005
Posts: 1,418
Mcallen, TX
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Quote:
Yeap that's a pretty nice fix...it looks simple? not for me..
What kind of price tag for that job?
$899.99 LOL. Not sure on the price Mr P. but the kid from Shady Dell can help with that, those picx belongs to him.
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Re: R3 low deck ????
[Re: RyanJ]
#688808
05/05/10 01:46 PM
05/05/10 01:46 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Going back over old invoice, looks like I charged $1130 total to convert the 59* block to 48* including cost of bushings & bushing job.
Yeah I figured it was you that did that Ryan... thanks
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Re: R3 low deck ????
[Re: emarine01]
#688810
05/05/10 03:00 PM
05/05/10 03:00 PM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
Humm... cam bushing seems doable
Not going to be able to do it without line boring the cam tunnel oversize to get a thick enough "sleeve" for the cam bearing......
Just leaving tunnel "stock" the #'s would look like:
#2 cam bore "sleeve" would be .008" wall thickness, #3 .0155" wall thickness, #4 .023" wall thickness...
Yes #5 would be possible @ .2185" wall thickness...
You would have to bore cam tunnel to an oversize, to do sleeves..... By time you pay for cam tunnel line bore, machine 4 custom sleeves, & install them, you'd be damn near a $900 custom LSM cam. All to use an "off shelf" $325 59 degree cam....
Machining block to 48, may be little more $, but at least then you have a 48 instead of 59 & all the associated hassles the 59* lifter bores bring.... Lifters dropped right in that 48* block after I was done W/ it, no lifter valley work done to clear link bars etc. Pushrod angles as mentioned earlier get worse when deck gets shorter, meaning the short decks amplify the 59* pushrod angle issues.
I've only built one short deck 59* motor (& it was actually REAL short @ ~8.9") Was not overly cool.... That was 59* W2 heads (angle milled to 16 degree no less) with a modified MP 9.20" M1 W2 intake manifold. It was a fabrication pain....
Considering I charge $550 for "normal" lifter bore bushing job, the fact I changed that block over to 48* only really cost $580... Which I don't think is bad, for how much time/labor is involved.
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