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-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Intake Runner volumes (https://www.offshoreonly.com/forums/general-q/336021-intake-runner-volumes.html)

I'CE 04-03-2016 07:46 PM
Originally Posted by sutphen 30 (Post 4423841)
so did all the heads listed in this test have 26° valve angles?because what we learned way back in the motorcycle days of the late 80's/90's was valve angle was the biggest gainer in flow.then make the ports bigger and straighter to get even more air in.
all about making the short side radius better.
all I know is aftermarket heads are better than stock,except in the case of merlin heads,they just plain suck.they need alot of work to make them right.
And you should Know for sure the pile of raw cast iron was sizable even the Boss companied, but you made them right!

MILD THUNDER 04-03-2016 07:50 PM
Originally Posted by Mr Maine (Post 4424281)
My intakes say "454-R VICTOR JUNIOR" What do you mean when you say you switched from the Victor Jr to the 454-R? Aren't they the same, or are you talking about an older Victor jr?
Got me too. I know they have a 454-R that has a 4150 flange, and a 454-R with a 4500 flange. I only knew of a "victor jr" or "super Victor", or "super Victor II"

Mr Maine 04-03-2016 08:06 PM
Originally Posted by MILD THUNDER (Post 4424328)
Got me too. I know they have a 454-R that has a 4150 flange, and a 454-R with a 4500 flange. I only knew of a "victor jr" or "super Victor", or "super Victor II"
Maybe he will chime in with what he means. My friend has an older 4150 victor junior and it is about an inch taller than my 454-R victor junior.

https://m.youtube.com/watch?v=r-tkaCrRPHU

On a related note here is the very first start of mine. (462 with 308 darts). Just started and brought to temp no adjments made. Wanted to check for leaks or obvious issues but all seemed fine

Black Baja 04-03-2016 08:17 PM
Originally Posted by MILD THUNDER (Post 4424328)
Got me too. I know they have a 454-R that has a 4150 flange, and a 454-R with a 4500 flange. I only knew of a "victor jr" or "super Victor", or "super Victor II"
Then there are the SV 565 and SV 632. Which are the newest and best Edelbrock intakes available. A "ported" intake in cast form.

bck 04-03-2016 08:24 PM
Originally Posted by Mr Maine (Post 4424281)
My intakes say "454-R VICTOR JUNIOR" What do you mean when you say you switched from the Victor Jr to the 454-R? Aren't they the same, or are you talking about an older Victor jr?
Sorry for the lack of specificity. The standard Vic Jr to me is the 4150 flange. The 454R is the 4500 flange. There doesn't appear to be a signifigant height difference although I haven't actually looked it up 2902 vs 2907.

bck 04-03-2016 08:47 PM
1 Attachment(s)
I looked it up.
2902 Vic Jr 4150
2907 454 R 4500
5.96(4150) vs 5.90(4500)height. Basically the same manifold but one with a 4150 flange and one with a 4500. Picked up 10-15 hp using the same 4150 carb. One with a plain 2 inch open spacer, the other with a plain 2 inch open adapter.

SB 04-03-2016 09:44 PM
Originally Posted by Mr Maine (Post 4424281)
My intakes say "454-R VICTOR JUNIOR" What do you mean when you say you switched from the Victor Jr to the 454-R? Aren't they the same, or are you talking about an older Victor jr?
The confusion is there is a Victor Junior 454R and a Victor 454R.

dereknkathy 04-04-2016 05:51 AM
I believe 454R is the head they fit not any kind of model number...


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