intake ??

THAT MUDFIT GUY · July 10, 2008, 10:39:43 PM

i have a 91 motor (new style heads) and a older style intake and have been told i can drill out the center bolt holes to make it fit i was wondering if this is true and will it cause any leaks and if it is still usable on a older style block any help would be appreciated thanx derek

Eroq · July 11, 2008, 02:27:32 AM

yes, no, yes

THAT MUDFIT GUY · July 11, 2008, 03:34:27 AM

thanx eric

Swampthing · July 11, 2008, 01:31:07 PM

they do make a intake.. to do just for doing that...bolt in.. no drilling required

Kodiak450r · July 12, 2008, 12:51:57 AM

you can use your intake. grind out the center bolt holes. have done this on more then 1 occasion and no problems ever happened. you can buy the proper intake from sumit or jegs. heres summits version. http://store.summitracing.com/partdetail.asp?part=SUM%2D226016&autoview=sku

THAT MUDFIT GUY · July 19, 2008, 12:26:25 AM

JEGS AND SUMMIT = MORE MONEY IM CHEAP LOL

Econo-box from Hell · July 19, 2008, 12:35:32 AM

If you are serious about using Vortec heads on an older block you are wasting your time messing with the old style intake. The intake ports are taller on a Vortec head so you really wouldn't gain any performance using an older intake with the newer heads.

Mudbuster · July 19, 2008, 01:11:37 AM

91's weren't vortec they were just center bolt

Econo-box from Hell · July 19, 2008, 03:27:02 AM

Quote from: Mudbuster on July 19, 2008, 01:11:37 AM
91's weren't vortec they were just center bolt

You are correct. After rereading the post I see what is going on. Since these are just TBI heads then it doesn't matter if you drill out the center holes.

Trucker · July 23, 2008, 02:35:17 AM

i have done this my self and it works but test fit and gring little at a time so you don't take to much out