427 SBF

Mike Beck said:
What unported head flows 341cfm? Just curious, not doubting you. My race car heads are around there and I know what that cost me.
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My 1982 Ford A3's (E2ZM-6049-A3 and/or 6090-A3)
The aluminum hi ports that were cast that are basically the 4v Cleveland heads with the raised exhaust port from back in the Glidden PS days. The intake port floor is filled/raised a bit also.
To be honest I did remove the sharp machining lines in the bowl but didn't even blend them, I was young and scared shitless of doing something wrong, lol. I polished the chambers and exhaust ports
 
BOSS#1540 said:
My 1982 Ford A3's (E2ZM-6049-A3 and/or 6090-A3)
The aluminum hi ports that were cast that are basically the 4v Cleveland heads with the raised exhaust port from back in the Glidden PS days. The intake port floor is filled/raised a bit also.
To be honest I did remove the sharp machining lines in the bowl but didn't even blend them, I was young and scared shitless of doing something wrong, lol. I polished the chambers and exhaust ports
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These were on a stock vehicle at some point of Ford Racing stuff?
 
Mike Beck said:
These were on a stock vehicle at some point of Ford Racing stuff?
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No, not production. Ford Motorsport, nascar etc
Same with the B351 and C302/C302b. All used the roush engineering Ford Motorsport single plane intake manifolds. Before the Yates c3 heads.
 
BOSS#1540 said:
No, not production. Ford Motorsport, nascar etc
Same with the B351 and C302/C302b. All used the roush engineering Ford Motorsport single plane intake manifolds. Before the Yates c3 heads.
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Ok, GM made some good stuff too, but not production. Their new stuff, SBF copied, is another story. Some of it is incredible for factory everyday stuff.
 
Anyone ever see a sbf with 7 bolts in each valve cover? I don't know wtf these gaskets are for, but the box is labeled correctly 🤷‍♂️
 
BOSS#1540 said:
Brian, I assume the 1 tonne allows for lower gears than my original front casing.
That's why I didn't bother with gears, could only go so low in original front end
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Yes,the 1/2 ton axles are holding you back. Lower gears,and the strength to stand up to them with the D60 and the 10.25 Sterling.
 
89 Fox 427 said:
6 speed, get your facts right!

I personally think I'm going to love snappy 1/2 to 3/4 throttle 2500-5500 street drives.

Shifting at 6200 I don't need a huge carburetor. Every calculator out there will be right on the 750cfm range at 95%VE.

Should I decide to track it and require the best run possible sure I'll put a 950 on there and see what it'll do yanking gears at 7200. And yes, I already have the dual plane, and not enough hood clearance for a super vic. Unfortunately when I made my brake lines I didn't account for a k-member spacer, so hood clearance is what it is.

Peak hp at 6k will be just fine for now. I need to get traction sorted out before I give one fuck about carburetor size
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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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