drilling out the intake holes

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Dec 30, 2003 | 10:45 PM

irocnroll89

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From: previously OKINAWA JAPAN,georgia, now new england

Car: 1989 IROC--1989 T/A

Engine: 5.7 TPI in both

Transmission: W/C T-5 in both

Axle/Gears: B/W 3.27 in both

drilling out the intake holes

Ok I want to put my 89 intake on the 85-86 heads. I have read all i can "searches", and need one last push be fore i drill it out. What do you guys think? No harm? Goo it up real good with RTV, na don't sweat it? THanks for prompt responses. shawn

Dec 30, 2003 | 10:59 PM

dimented24x7

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From: Moorestown, NJ

Car: 88 Camaro SC

Engine: SFI'd 350

Transmission: TKO 500

Axle/Gears: 9-bolt w/ 3.23's

I did this. No, it wont do much harm. Drill/grind the bolt holes out untill they allow the bolts to make the correct angle to screw into the older style heads. Also a good idea to make some angled washers so the bolt heads have a flat surface to sit on when theyre tightend rather then jsut having the very edge of the bolt head make contact with the intake.