I have recintly refigured my motor budget and can not afford the AFR 190's. My question is will these L98 bolt directly on to (without any valve schroding) to my 89 305? Thanks

 

Yes.

 

Well, does your budget allow for a 350? I dont know what you were planing, whether it be a full rebuild or just a freshing.

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You have walked onto the biggest baddest dog porch and you will be dealt with accordingly.

I'd rather be historically accurate than politically correct!

 

Yes, sort of. You will have to get a hole drilled and tapped into the front passenger side for the AC accessory bracket. Don't forget to do this before you put the heads on the car like I did. It's the hole closest to the intake, it is off by about an inch. Also you will have trouble with the EGR, as corvettes route it differently. I don't know how to set it up. I just eliminated it alltogether on my car. And the center bolts to the intake are designed for the older style intake (86 and earlier) so you will have to get the holes on your intake elongated. One more thing, the vette heads have a D shaped raised exhaust port so you might have trouble with your manifolds/headers sealing.

 

ok COOL SO I KNOW WHAT THEY WILL FIT. But I do not have to drill a hole for the A/C braket for my car is a 89 with A/C. I know this because I was going to order AFR 190 heads but $$$$$ and they said that i would not need the A/C tapped because my car doesn't have one. Cool thanks a lot!!!!

 

On a serpentine setup, the bracket bolts to the heads and the engine. If you have that bracket, AC or not, you'll need to drill and tap the hole.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

Yeah, about the AC accessory hole... if you have a serpentine setup you do need it. I thought I wouldn't need it either. But now I can vouch for this since I just spent last sunday drilling, tapping, and helicoiling a hole into the side of my vette head with the heads on the engine and the engine in the car, cursing myself the whole time for not having done it earlier.

 

Well i am not standing in front of my car right now so i can;t tell weather or not it is a serp or not but i will tap the hole anyways even if I do not need it for I can always throw a bolt in it.

 

If you have any fabrication/machine shop skill and access to equipment here's another option. I deleted the a/c and smog pump on my car. Cut the alt mount off the power steering brkt and deleted it. I then made an alt mount for the passenger side that mounts where the a/c was. I wish that I knew how to post a pic. It got rid of a lot of weight and gave a lot more working room around the engine. It has an adjustable rod end lingage for belt tension. No big deal just another day at work solving the engineers problems from a mechanic's point of view.

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91 RS 5.0 TBI....LT4 cam....Edelbrock headers....3"Dynomax exhaust....5spd.... 3.08.....Ultimate tbi....afpr...ZR 255-50's...Koni's

 

So, how do you tap and and make hole in a head for a bracket exactly??

Jon

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89 GTA
Beautiful Gunmetal gray, LB9 305 and T5 tranny. Only 60,000 miles!
Dual cats, 3"flomaster
Accel 300+ Ignition, wires, cap, coil, etc
Airfoil
KN Airfilter
Removed Screens on MAF
SLP 1 3/4 headers
No Smog/AIR system