drilling intake for magnum swap

[dartswinger74]

Im swapping magnum heads onto my 360. I want to redrill the bolt holes in the intake insteasd of buying a new one. Is there any knid of inexpensive jig i can use for this ? Any suggestions are greatly appreciated

[340duster1]

You should redrill the heads, see a section under circle track chat on this. Use 5/16" bolts.
http://www.moparchat.com/forums/show...threadid=81509

[Clair]

Originally posted by dartswinger74
Im swapping magnum heads onto my 360. I want to redrill the bolt holes in the intake insteasd of buying a new one. Is there any knid of inexpensive jig i can use for this ? Any suggestions are greatly appreciated

Just such a jig is being constructed on a different list… for drilling the heads, that is. I’m doing the opposite of you and installing a Magnum M1 EFI manifold on my LA heads. Looks like the operation is pretty straight forward for me, but that’s because the port face on the Magnum intake is set up for the LA bolt angle. LA’s are about 7.5-8.0 degrees UP from perpendicular to the intake face. Freaky that they aren’t just perpendicular, but hey, that’s Ma Mopar. I’m sure there was a reason…