427 SBF

mcgyver racing said:
Vic Jr manifold? Weinds? Did you speak w shafiroff guys. They dyno and experiment constantly. They know what will work. Some are surprising nowadays.
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I think the height of a vic jr also does not clear the hood, but I'll have to clay it again after the engine is in and take another look.

My experience with shafiroff isn't great, because my sales guy seems pretty clueless. I email and get no response, when I call I get put on hold while he goes and asks, comes back with half an answer, and my follow up question I get the same disappearing act. That's when he says just email the questions to me and then again I don't hear back.

I also didn't get a build sheet with clearances of any kind, just a parts list which pisses me off. When I asked about it he said they keep all the info there in the computer. I ask for it, he said he'll email it. Guess how that turns out.

I think Vinny is the guy to talk to but he's a busy man
 
89 Fox 427 said:
I think the height of a vic jr also does not clear the hood, but I'll have to clay it again after the engine is in and take another look.

My experience with shafiroff isn't great, because my sales guy seems pretty clueless. I email and get no response, when I call I get put on hold while he goes and asks, comes back with half an answer, and my follow up question I get the same disappearing act. That's when he says just email the questions to me and then again I don't hear back.

I also didn't get a build sheet with clearances of any kind, just a parts list which pisses me off. When I asked about it he said they keep all the info there in the computer. I ask for it, he said he'll email it. Guess how that turns out.

I think Vinny is the guy to talk to but he's a busy man
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Yes. Wish I knew previous. I’d have had you speak to Mike G in sales. Good guy.
 
89 Fox 427 said:
I think the height of a vic jr also does not clear the hood, but I'll have to clay it again after the engine is in and take another look.

My experience with shafiroff isn't great, because my sales guy seems pretty clueless. I email and get no response, when I call I get put on hold while he goes and asks, comes back with half an answer, and my follow up question I get the same disappearing act. That's when he says just email the questions to me and then again I don't hear back.

I also didn't get a build sheet with clearances of any kind, just a parts list which pisses me off. When I asked about it he said they keep all the info there in the computer. I ask for it, he said he'll email it. Guess how that turns out.

I think Vinny is the guy to talk to but he's a busy man
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That’s kind of fucked that there is no build sheet, especially for the amount of money spent.
 
89 Fox 427 said:
I think the height of a vic jr also does not clear the hood, but I'll have to clay it again after the engine is in and take another look.
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I don't know about the SB Ford, but the BB Chevy Vic Jr. carb pad is level vs the correctly tilted pad of the Performer intakes.
Between that and the height difference I lost interest in spending time thinking about trying to make one fit.
 
Steve439 said:
I don't know about the SB Ford, but the BB Chevy Vic Jr. carb pad is level vs the correctly tilted pad of the Performer intakes.
Between that and the height difference I lost interest in spending time thinking about trying to make one fit.
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After investigation, the air gap and the vic jr both have the same carb pad height of 5.75" but you are correct.. the Victor jr is 0 degree carb angle. Not sure what the angle is on the air gap, but it sure isn't 0.

I'm really going to look at spacing the k member, if I can put 1/4in spacer without destroying my brake lines a vic jr might be on the horizon
 
89 Fox 427 said:
After investigation, the air gap and the vic jr both have the same carb pad height of 5.75" but you are correct.. the Victor jr is 0 degree carb angle. Not sure what the angle is on the air gap, but it sure isn't 0.

I'm really going to look at spacing the k member, if I can put 1/4in spacer without destroying my brake lines a vic jr might be on the horizon
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I have UPR aluminum spacers if you need them. Let me know.
 
89 Fox 427 said:
After investigation, the air gap and the vic jr both have the same carb pad height of 5.75" but you are correct.. the Victor jr is 0 degree carb angle. Not sure what the angle is on the air gap, but it sure isn't 0.

I'm really going to look at spacing the k member, if I can put 1/4in spacer without destroying my brake lines a vic jr might be on the horizon
Click to expand...

If you really wanted to get into it, you could find or figure out the angle and either have the intake milled or find a thin tapered spacer.
Then I imagine you could use leveling washers to make up for the slight difference in the carb fastener angle.
 
89 Fox 427 said:
I'll meet you halfway. Ported vic jr?
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Better,but no, at least IMO. Remember when you are looking at info sizing/RPM...all that shit,that a 427 is big block cubes breathing through small block heads/intake. Anything said to be "big" or for "high RPM power" is going to be tamed down by the extra cubes. A 427 w/a single plane with make plenty of low RPM power. And will be choked at high RPM by a dual plane or small single plane. Mine will pull 5th gear all the way down to 1000 RPMs with a fairly big cam.
 
Briansshop said:
Better,but no, at least IMO. Remember when you are looking at info sizing/RPM...all that shit,that a 427 is big block cubes breathing through small block heads/intake. Anything said to be "big" or for "high RPM power" is going to be tamed down by the extra cubes. A 427 w/a single plane with make plenty of low RPM power. And will be choked at high RPM by a dual plane or small single plane. Mine will pull 5th gear all the way down to 1000 RPMs with a fairly big cam.
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I'm curious as to how I seem to be one of the few having hood clearance issues with a 351w in a foxbody and 3" cowl, and I'm basically touching the kmember
 
fyi a 4150 super vic was still a tire burner on my 'cam only' 346 ls1. In fact it hit the tires harder on the hit than the factory plastic long ram style intake did. You don't need to worry about a lack of torque on a 427ci with decent heads in a light(ish) car .... at all

supervic.md.jpg


Edit: I sold that super vic intake/fuel rails/throttle body set up above to @lumen8 because i now have LS7 heads (different port locations) on a 6.0 litre

His car is a decent amount heavier than mine and still moves out. Sbe 346ci with a big cam and the mid/top end feels like a big block. In fact i told him it'll make even more power with a 4500 throttle body on it with an adapter. Yes on a n/a 346ci, i've seen it. EFI does that, no carb signal to worry about. If he ever gets back around to messing with his car i have a 4500 throttle body he can borrow if i haven't used it myself by then
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Other than #1 on the wrong side that intake sure looks a lot like my Roush A331 from 45 years ago. I guess I should've said 45 years late to the party 😆🤣😭😉
 
Steve439 said:
If you really wanted to get into it, you could find or figure out the angle and either have the intake milled or find a thin tapered spacer.
Then I imagine you could use leveling washers to make up for the slight difference in the carb fastener angle.
Click to expand...
I angled my air breather. Also a pita as it was already a drop base so after I angled it the front float adjuster on the holley hit the underside of the breather. I cut out an opening for it and made a cover inside the breather. It all fits with a 3" filter element but that's using the factory hood scoop the 83 mustang comes with. And it just fits, engine needs to be tied down. That's with a 6.25" carb base iirc (roush a331).
Could the vic be machined on an angle or does that mess it up ?
 
Guys on the Chevelle and Corvette forums have angle milled Vic Jrs, but that's on BB Chevies.
I don't remember reading about before and after testing.

It all sounds like a PITA... I'll run an Air Gap and I'll like it! :LOL:
 
Steve439 said:
Guys on the Chevelle and Corvette forums have angle milled Vic Jrs, but that's on BB Chevies.
I don't remember reading about before and after testing.

It all sounds like a PITA... I'll run an Air Gap and I'll like it! :LOL:
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All just to fit under a factory hood, lol. I'll make a different hood scoop or something so I can run a proper breather at the track.
 
Always hard to compare two different engines but the dyno videos I've seen comparing vic jr single plane to air gap dual plane intakes show negligible differences up to 6500. Distribution is a different story, but I can't fit an open spacer either
 
Cleaning the lifters, should they be disassemble first?

Is brake clean or acetone acceptable? Maybe soak in atf first
 
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Cam specs:
Hyd roller
.638in/.622ex
243/255 @ .050
113lsa
Installed 2 degrees advanced
 
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