Zz427 In a 1981 Corvette
Thread Starter
Intermediate
Joined: Aug 2008
Posts: 32
Likes: 0
From: Tronto ON
Zz427 In a 1981 Corvette
I want to put a zz427 in my 1981 corvette .
I also have side pipes on the car now and I would like to keep them .
But I will get the big block one's .
But the question is will the side pipes fit ???.
And can I still use my original hood or do I have to get a hi-rise hood ?.
Oh sorry I also have a Kessler 5speed in the car now.
Thank 's for all the in put from every one .
I also have side pipes on the car now and I would like to keep them .
But I will get the big block one's .
But the question is will the side pipes fit ???.
And can I still use my original hood or do I have to get a hi-rise hood ?.
Oh sorry I also have a Kessler 5speed in the car now.
Thank 's for all the in put from every one .
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
You may be able to fit the setup under the hood with a drop base air cleaner - I suspect that that intake is significantly taller than the one that's on there. You'll have to do some measurements and find out.
Finding a pair of big block side pipes that will work should be fine.
Which Keisler 5spd?
Finding a pair of big block side pipes that will work should be fine.
Which Keisler 5spd?
Race Director
Joined: Apr 2000
Posts: 17,665
Likes: 194
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Safety Car
Joined: Mar 2007
Posts: 3,652
Likes: 49
From: Bridgewater nj
I was able to fit a 427 BBC in my 74 with the stock cast iron intake and a edelbrock triangle foam air cleaner. That air cleaner is a fire waiting to happen FYI.
Side pipes are pretty generic for 68-82 BBC
Side pipes are pretty generic for 68-82 BBC
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
I want to put a zz427 in my 1981 corvette .
I also have side pipes on the car now and I would like to keep them .
But I will get the big block one's .
But the question is will the side pipes fit ???.
And can I still use my original hood or do I have to get a hi-rise hood ?.
Oh sorry I also have a Kessler 5speed in the car now.
Thank 's for all the in put from every one .
I also have side pipes on the car now and I would like to keep them .
But I will get the big block one's .
But the question is will the side pipes fit ???.
And can I still use my original hood or do I have to get a hi-rise hood ?.
Oh sorry I also have a Kessler 5speed in the car now.
Thank 's for all the in put from every one .
You'll want to have some custom side pipes made up for that engine anyways, the stock style side pipes will severely choke it.
Thread Starter
Intermediate
Joined: Aug 2008
Posts: 32
Likes: 0
From: Tronto ON
You may be able to fit the setup under the hood with a drop base air cleaner - I suspect that that intake is significantly taller than the one that's on there. You'll have to do some measurements and find out.
Finding a pair of big block side pipes that will work should be fine.
Which Keisler 5spd?
Finding a pair of big block side pipes that will work should be fine.
Which Keisler 5spd?
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Burning Brakes
Joined: Jun 2010
Posts: 1,165
Likes: 93
From: Bellmore NY
Just at a glance, the value for performance of the zz427 is pretty unimpressive in my opinion. To each his own, of course, and I mean the previous statement with the utmost of respect.
You could build a 400 sb that would beat up on this thing, and would be totally inconspicuous under the hood, and as a previous poster mentioned, you wouldn't have to change the pipes, or much else for that matter.
You could build a 400 sb that would beat up on this thing, and would be totally inconspicuous under the hood, and as a previous poster mentioned, you wouldn't have to change the pipes, or much else for that matter.
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
Just at a glance, the value for performance of the zz427 is pretty unimpressive in my opinion. To each his own, of course, and I mean the previous statement with the utmost of respect.
You could build a 400 sb that would beat up on this thing, and would be totally inconspicuous under the hood, and as a previous poster mentioned, you wouldn't have to change the pipes, or much else for that matter.
You could build a 400 sb that would beat up on this thing, and would be totally inconspicuous under the hood, and as a previous poster mentioned, you wouldn't have to change the pipes, or much else for that matter.
Racer
Joined: Jul 2008
Posts: 258
Likes: 1
From: Gippsland, VIC Australia
There's something magical about the number "427"
Here's a link to the first of a four part bbc swap http://www.superchevy.com/how-to/vem...k-engine-swap/
I want to do the same with my 80, I've got a fair bit to do before I worry about another motor though.
And I just had a shoulder reco, so I'm out of action for three months
Here's a link to the first of a four part bbc swap http://www.superchevy.com/how-to/vem...k-engine-swap/
I want to do the same with my 80, I've got a fair bit to do before I worry about another motor though.
And I just had a shoulder reco, so I'm out of action for three months
Last edited by waljr; Jun 3, 2015 at 07:00 AM. Reason: Link fixed
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
I have two C3's with 454's in them and I can certainly say "there's no substitution for cubic inches". The massive torque at a low rpm is awfully nice to have; especially as I live in the mountains.
Team Owner
Joined: Jul 2004
Posts: 40,318
Likes: 786
From: Redondo Beach, California
I think you're referring to the factory 69 sidepipes sold only in that year. Yes, they are reportedly restrictive even though they are noisy!! The hooker style sidepipes are not restrictive...depending upon what mufflers you decide to install or not install.
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
Yes, I was. he didn't specify which he had, so I let him know if they were the stock style they would choke it.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
GM crates def cost more than a rebuilt but its all new....not rebuilt
Id imagine it would hold up longer than what some machinist did also.
could go either way. Sometimes its just easier to pick up the phone have it dropped off, install and fire up. Keep us posted on your impression when you get it running, 427 is plenty to power that car
Id imagine it would hold up longer than what some machinist did also.
could go either way. Sometimes its just easier to pick up the phone have it dropped off, install and fire up. Keep us posted on your impression when you get it running, 427 is plenty to power that car
Advanced
Joined: Sep 2005
Posts: 50
Likes: 1
From: Chilliwack B.C.
ZZ427 mcjacks headers and Sweet Thunder "Give No Mercy" pipes. Mine isn't using any oil I couldn't be happier with it.
Check out my thread for an idle video:
https://www.corvetteforum.com/forums...-no-mercy.html
Check out my thread for an idle video:
https://www.corvetteforum.com/forums...-no-mercy.html
Last edited by donkeyboy; Jun 15, 2015 at 03:33 AM.
Instructor
Joined: Nov 2009
Posts: 128
Likes: 2
From: Leesburg VA
I put a ZZ454 in mine and love it. I had to change the factory oil pan as it was almost dragging the road. I put a Edelbrock #75614 air gap intake on it with an L88 hood. It is 1/4" away from hitting. I also added a set of stainless side pipes from XS-Power.
Le Mans Master
Joined: Jan 2006
Posts: 6,503
Likes: 138
From: Butler Pa