Intake Runner volumes
04-03-2016, 07:46 PM
#71
Registered
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.
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.
04-03-2016, 07:50 PM
#72
Registered
Thread Starter
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"
04-03-2016, 08:06 PM
#73
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
04-03-2016, 08:17 PM
#74
Registered
Then there are the SV 565 and SV 632. Which are the newest and best Edelbrock intakes available. A "ported" intake in cast form.
04-03-2016, 08:24 PM
#75
Charter Member#568
Charter Member
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.
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Straight bottoms and flat decks
Straight bottoms and flat decks
Last edited by bck; 04-03-2016 at 08:39 PM.
04-03-2016, 08:47 PM
#76
Charter Member#568
Charter Member
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.
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.
__________________
Straight bottoms and flat decks
Straight bottoms and flat decks
Last edited by bck; 04-03-2016 at 09:22 PM.
04-03-2016, 09:44 PM
#77
Registered
