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View Full Version : Do all Blower Manifolds need to be machined?


retromek
10-25-2004, 06:53 PM
My Manifold, A weiand 7151, Has to be slid into place from the front to fit between the heads.
The edge under the blower stud holes hits my valve covers.
anyone know how to fix this? :cry:
Infomaniac
10-25-2004, 07:03 PM
My Manifold, A weiand 7151, Has to be slid into place from the front to fit between the heads.
The edge under the blower stud holes hits my valve covers.
anyone know how to fix this? :cry:
Has your block been decked?
Weiand is the poorest quality manifold that you can get. Does it have a raised floor?
Might be e-bay material.
retromek
10-25-2004, 07:05 PM
The Block has been decked and the heads milled nut I don't know by how much.
Infomaniac
10-25-2004, 07:19 PM
Block decked and heads milled by any more than just a hair = some possible intake milling as well.
Usually some push rod attention also.
Fiat48
10-25-2004, 07:49 PM
Are these pics with intake gasket in place?
retromek
10-25-2004, 07:51 PM
No Gasket! Thats the trouble I'm Thinking
Fiat48
10-25-2004, 07:52 PM
Go check it with a gasket....changes everything. Take the valve covers off and do it.
retromek
10-25-2004, 07:55 PM
manifold won't fit. The ledge that the covers rest on gets in the way.
Fiat48
10-25-2004, 07:58 PM
Why they make die grinders. Or use a BDS. I don't recall grinding on them.
retromek
10-25-2004, 08:03 PM
ok, thanks.Fits almost perfect without a gasket.
Fiat48
10-25-2004, 08:07 PM
With the valve covers off...intake gasket in place...set the thing on and see what kind of port match you have. That will tell you a lot in how much the heads or block have been cut. I have seen some cases where the manifold has to be ground on for valve cover clearance. Also pay attention to how much core shift is in the manifold.
wideopen545
11-03-2004, 04:46 PM
my intake weiand 7151 had the same deal we milled covers a small amount and also had to cut the intake were the blower studs go i thank it was a bad casting thats what summitt said
good luck
promod
11-03-2004, 06:20 PM
Why they make die grinders. Or use a BDS. I don't recall grinding on them.
i run all bds stuff and never had to do any grinding what so ever oh yeah bds stands for bad damn shit in a good way lol ;)
promod
moneysucker
11-03-2004, 07:07 PM
With my mooneyham manifold, I have to turn the motor over until the valves are alligned just right to clear. Might try this first. Everyone was hoping my sheet metal valve covers wouldn't fit while watching me pull that one off. (Vultures) It is worth a shot, especially if the manifold is polished.
retromek
11-03-2004, 07:08 PM
I had to get out the disc grinder..... made a mess but fits good now.