I have a 73 motor with a cracked exhaust manifold, i want to put headers on instead of a stock replacement manifold, do i also need to change out the intake if i use headers?

-alex

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mopar or no car!!!

from what i gather it would depend on what kind of headers ur lookin at...research is good

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My Dart
GO VOLS!
It's not rocket science, we're just splitting atoms.

no, you can use the stock intake.

yes you can use the stock intake. however, if you use the clifford headers, the flanges are different thicknesses. you need to use a thick and soft manifold gasket to get it to seal up. i have a leak on #4 that won't seal up because the difference in thickness.

zedpapa

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1970 dodge dart w/225 /6 bored .040" over, holley 390cfm w/vac. sec., compcams 252s, clifford shorty headers w/2.5" exhaust w/flowmaster, f-body 11" front discs, aluminum A-833OD, 8 1/4 w/3.21 SG
soon to have 5 gears!!!

4 sets of Clifford headers, I have, are all 1/2 inch flange. The MP headers I have seen, have a thinner flange with, (I think) a nut welded on, where the triangle washers go.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

My Clifford headers have the thick flange also. I am using an Offy intake. I don't know if it is different than stock.

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"Nothing in all creation is hidden from God's sight. Everything is uncovered and laid bare before the eyes of Him to whom we must give account."

The Offie, Clifford and factory manifolds, I have in stock, all have the same flange thichness, within manucturing tolorances.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

my clifford headers hava a thinner flange than my clifford 4 barrel intake.
I ground around an 1/8" off of one side of the triangle washers to make everything seal up nicely.

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On my mopar headers I welded 3/16" spacers on the flanges where the triangle washers make contact.This brought it up to the same thickness as my offy intake.It seals no problem with a Mr Gasket 320 gasket.

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72 Scamp dual 1 brl