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Old 09-08-2006, 09:04 AM
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How to Modify chevy intake to fit 87+ 350?

Does anyone know if there is a way to modify the typical small block chevy aluminum intake manifold to fit 87 and up 350 iron heads?

I am asking because I am unsure of all the differences. I think the only difference is the four center intake bolts are drilled at 72 degrees instead of the typical 90 degrees. Is there a way to make an older style intake fit?

My brother bought a low mileage 89' 350 out of an IROC camaro to drop in his 68 Nova. If we can modify the older intake to fit that's what we will do. We don't want to shell out the $159 for a newer style intake.

Thanks in advance

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Old 09-08-2006, 09:45 AM
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intake manifold

Check with Randy Brzezinski at

At one time they were modifying older heads to accept the newer intakes. He may have some pointers for you.

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Old 09-08-2006, 10:56 AM
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You can buy tapered washers for the 4 center bolt holes. You just have to search for where to get them. I can't remember where I got mine. Sorry?
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Old 09-08-2006, 07:31 PM
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would you not be better off with different heads ? I guess I was thinking them heads (especially if there tbi heads) were not much good after 4000rpm, i'm not sure about TPI heads. but someone here will know 4 sure. can you run the factory camaro fuel injection & factory computer ?

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Old 11-13-2015, 11:25 PM
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Dremel or a drill buy you don't care about. If you can get the bolts to thread all the way down by hand your good. Proper torque it will seal. Remember in 96 the center bolts were deleted.
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Old 11-14-2015, 07:52 AM's Avatar
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I have modified plenty of SBC intakes to take later heads.
I use a 3/8" end mill in a vertical mill (a drill press would work). Slot the center 4 holes. Spacers can be made from bar stock or thick wall tube. 3/8" ID by 1/2" long. Cut one end on angle.
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Old 11-14-2015, 05:07 PM
4 Jaw Chuck's Avatar Moderator
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9 year old thread guys, read the date before replying.
“She may not look like much, but she's got it where it counts, kid. I've made a lot of special modifications myself.”

— Han Solo
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