R3 block info

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Have to build a 727 first dynos are few in WA it is a standard super victor port injection manifold I cut the valley & water end off with a slitting grinder then cleaned it up in the mill.
When i had the heads apart had the end water holes milled round & tapped to 1" BSP i am over the water going everywhere every time i take the manifold off
Siamese block used -8 in the heads for cooling & blow the water in at the front of the lower block through -16 you can probably get away with -6 as this engine takes forever to get to temp even with the pump turned off probably due to the large chunks of aluminium bolted to the top plus the mass of iron in the block.
Kent Ritter has Arrow timing covers for sale
Also you cannot use the inner bolt holes on the Victor heads unless they have changed them recently as they are drilled up from the bottom like a hemi & don't line up with the inner holes in the block use a W9 or similar if you want to use the inner bolts.
Victor.jpg


Victor2.jpg
 
That was an option would have gone that way but to many hurdles here for licensing
 
@AUSA66
Those are Hughes CNCd aluminum rocker arms, are they cryo strengthened by Hughes? Any other comments about them?
Victor2.jpg

I'm curious because I just read about the BB version on their website, I didn't know about them until then, the couple of strong recommendations I got to use them on FBBO are from experienced racers I trust.
I'm just trying to learn more.
Also, IF you don't mind, can anyone give me the short "scoop" on the R3 blocks? I'm a long time (since I was 7, I'm 59) citizen of the MOPAR nation, but the last time I was working with a small block, W2 heads were "the thing". Lol.
 
Yes they are the Cryo version not sure on the longevity of them haven't go any hours on them yet i am sure there are guys on here that are very familiar with the various R3 blocks .
 
B3422w5 said:
Those Hughes rockers are what by friend used in his dyno competition build..376 inch 360 with Victor heads.
He was very happy with the rockers, and is a big supporter of cyro treatment

376 cid Mopar Engine
Click to expand...
That's a healthy looking build i am just putting a set of Hughes on my 392 stroked 340
 
B3422w5 said:
Those Hughes rockers are what by friend used in his dyno competition build..376 inch 360 with Victor heads.
He was very happy with the rockers, and is a big supporter of cyro treatment... i know he would see that motor..just sitting in his shop
376 cid Mopar Engine
Click to expand...
AUSA66 said:
Yes they are the Cryo version not sure on the longevity of them haven't go any hours on them yet i am sure there are guys on here that are very familiar with the various R3 blocks .
Click to expand...
Thanks for the replies.
We all know how people/companies trying to sell products and services will describe their items in the best way possible, but IF what Hughes says is true, I can't imagine using any other rocker arm on my Bill Mitchell Products "new" design RB big bore aluminum block. 4.50 bore X 4.35 stroke for 541 cu in displacement, street/strip use, lots of street and highway miles anticipated. Power goal is the widest, flattest 700 ft lbs of torque possible.
 
Biomedtechguy said:
Thanks for the replies.
We all know how people/companies trying to sell products and services will describe their items in the best way possible, but IF what Hughes says is true, I can't imagine using any other rocker arm on my Bill Mitchell Products "new" design RB big bore aluminum block. 4.50 bore X 4.35 stroke for 541 cu in displacement, street/strip use, lots of street and highway miles anticipated. Power goal is the widest, flattest 700 ft lbs of torque possible.
Click to expand...


I just got my cam and lifters back from cryo. Any SFT cam I do (and probably roller cams and lifters too but the SFT stuff for sure) will get cryo treatment. Cheap insurance.
 
MHEAD please clean out your inbox, it says its full and you can't receive anymore messages. Thanks
 
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