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updating a 91 z28

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Old 03-30-2006, 06:37 AM
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updating a 91 z28

Here's what I have 91 Z28 350tpi.

It's been sitting in my garage for the last 10 years and this year it's gonna run. It only has about 24000 original miles on it and the paint is like new. I've purchased some edlebrock heads, some stock, aluminum heads from a 91 zr1 (which are being ported, polished and built right now) and a cam. I'm gonna be purchasing an msd box, distrubutor, cap, rotor, wires and plugs very soon. I'm starting the tear down this weekend. I'm used to brakes, light maintenance and some front end but this is a realm I've never dove into so any advice would be greatly appreciated. Thanks alot!!
Old 03-30-2006, 06:51 AM
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Originally Posted by dave_d
Here's what I have 91 Z28 350tpi.

It's been sitting in my garage for the last 10 years and this year it's gonna run. It only has about 24000 original miles on it and the paint is like new. I've purchased some edlebrock heads, some stock, aluminum heads from a 91 zr1 (which are being ported, polished and built right now) and a cam. I'm gonna be purchasing an msd box, distrubutor, cap, rotor, wires and plugs very soon. I'm starting the tear down this weekend. I'm used to brakes, light maintenance and some front end but this is a realm I've never dove into so any advice would be greatly appreciated. Thanks alot!!

You only need to hit the post new thread button once there buddy
Old 03-30-2006, 07:32 AM
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ZR1 heads won't fit a small block. Not even close. A ZR1 LT5 is a 32 valve DOHC motor.

Plus I thought you just said you got Edelbrock heads? I'm confused.
Old 03-30-2006, 07:35 AM
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I dont think this has anything to do w/ Restoration...

And ZR1 heads arent going to work on an LB9 or L98...
Old 03-30-2006, 09:38 AM
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he probably meant edelbrock heads and zr1 headers(not sure if they even fit)
Old 03-30-2006, 10:05 AM
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Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Originally Posted by Red1992V6Rs
he probably meant edelbrock heads and zr1 headers(not sure if they even fit)
They don't. The corvette frame is in an entirely different location, plus the ZR1 doesn't use the same exhaust port configuration or height.
Old 03-30-2006, 06:45 PM
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Sorry about posting in the wrong thread.

I made a mistake about the headers...they are headman I believe and now I'm a bit worried about the heads. I bought them from a guy who said they would work...didn't pay much for them initially but now getting them built is costing a bit. The number on them is 10088113...other numbers are 7329 and 7387. Maybe he had the application wrong. Will these work??
Old 03-31-2006, 06:37 AM
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sounds like the heads you have are 113 aluminum vette heads. they will bolt up to your small block. if ya got em for a steal that good too. post up some pics.
matt
Old 03-31-2006, 07:10 AM
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113 heads are aluminum heads used on a regular TPI Corvette, not a ZR1. Of course, this is good news to you, because a ZR1 uses a completely different motor.

The 113 heads, when worked on by a guy who knows what he's doing, are very good heads. In stock form they're "eh", but can be ported to match the flow of a set of AFRs, provided the guy doing the porting knows what he's doing.
Old 03-31-2006, 08:14 AM
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Whew!! Thanks for the info guys I really appreciate it!! I don't know the guys who's doing the heads but he came very highly recommended...for anyone in the MI area it's Gregs Cylinder Head in Riverview. He said initially they would fit but hey ya never know he may have just wanted to make a buck then I'm stuck. I will have some pics shortly! Within the next couple weeks I'm hoping to have it running!! This forum is awesome. I spent two hours printing and reading last night. Teardown starts Sat!!!
----------
Originally Posted by Jim85IROC
113 heads are aluminum heads used on a regular TPI Corvette, not a ZR1. Of course, this is good news to you, because a ZR1 uses a completely different motor.

The 113 heads, when worked on by a guy who knows what he's doing, are very good heads. In stock form they're "eh", but can be ported to match the flow of a set of AFRs, provided the guy doing the porting knows what he's doing.
Thanks Jim85IROC...I appreciate it

Last edited by dave_d; 03-31-2006 at 08:15 AM. Reason: Automerged Doublepost
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