C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

454 into 90 c4

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Old Nov 28, 2014 | 01:09 PM
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Default 454 into 90 c4

hi has anyone put a 454 into a 90 c4 body?
I have tried to check this out through search option but it keeps kicking back to c3.

I want to build a big block c4. I like hot rods and have a 90 convert setting around not being driven and want to put a big block into it.

Has any one on the forum done this?
if so what results?
Any input or tips will be helpful.

thanks for any and all input
calicokid
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Old Nov 28, 2014 | 01:18 PM
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Pretty good info on this thread.

http://www.corvetteactioncenter.com/...-possible.html
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Old Nov 28, 2014 | 01:34 PM
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Not to mention

THS THREAD ....that you also started on the same topic. One thread ought to cover the topic.
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Old Nov 28, 2014 | 07:59 PM
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Default i typed in first thred but did not see it post . sorry

Originally Posted by Tom400CFI
Not to mention

THS THREAD ....that you also started on the same topic. One thread ought to cover the topic.
i entered 1st thred but did not see it post so i thought i made mistake and tried again sorry
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Old Nov 28, 2014 | 08:15 PM
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Have drove it runs hard but trans gone.Rebuilding a 400 for right now. Hope to start driving daily soon.
Did all work with hand tools and stick welder.










Last edited by Cutter1; Nov 28, 2014 at 08:24 PM.
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Old Nov 28, 2014 | 10:50 PM
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How do you like the extra weight in the front end?

Does it handle better? the 65% 35% weight distribution is interesting for a sports car with independent rear suspension.
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Old Nov 28, 2014 | 11:38 PM
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GM made one years ago
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Old Nov 29, 2014 | 11:17 AM
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I it wasn't for the moving the steering rack part I would be all over it. Its not hard to move the rack but I would hate to mess up the steering geometry.

four big things to consider
1. moving steering rack
2. headers
3. hole in the hood
4. weight

if your just wanting a "Hot Rod" build a big inch small block and none of these will be a factor.
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Old Nov 29, 2014 | 11:48 AM
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Originally Posted by project C4
I it wasn't for the moving the steering rack part I would be all over it. Its not hard to move the rack but I would hate to mess up the steering geometry.

four big things to consider
1. moving steering rack
2. headers
3. hole in the hood
4. weight

if your just wanting a "Hot Rod" build a big inch small block and none of these will be a factor.
He might not need to put a hole in the hood, if he goes with the right EFI setup
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Old Nov 29, 2014 | 02:29 PM
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There not much weigh difference for a street driver to worry about.Good efi is nice but 5k easy for what I would want.There are low intake carb sets that will fit but performace will suffer.
People say big cube small block but intake still applies or after market ef
I have drove both and its not the same.High cube big cam small block is not a daily driver. 600 hp not so hard on bbc.
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Old Dec 1, 2014 | 07:10 PM
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Try this link
http://forum.grumpysperformance.com/...c.php?f=38&t=6
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Old Dec 2, 2014 | 10:37 AM
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Originally Posted by Nowhere Man
GM made one years ago
I remember reading in Vette Magazine in the early 1990's that GM did do that, very little modifications were needed if i recall correctly.

I have considered it, I have a 454 MercCruiser that would be awesome in a C4!
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Old Dec 5, 2014 | 12:26 PM
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Originally Posted by Nowhere Man
GM made one years ago
True, but the SBC handled way better than the BBC, that suffered from way more understeer. (got that tee shirt).

I've found (researched a BB for my C4 some years ago), and get comparable torque from the longer stroke of my 409. The 50-50 F/R balance makes the car a blast to drive, which the few experts who have driven have voluntarily stated.

I always was a BB devotee (no substitute for cubic inches) but learned that unlike most hot rodders extolling HP, it's torque that we love. After all, HP is a computation and too easily manipulated in marketing hype.

Many here, have gotten great performance and streetable results without blowing the budget, running SB setups. While difficult to predict, the myriad, unique little things in this rare task, like sufficient cooling, proper brakes given that weight distribution, etc., can really add up quickly. The BBC may be less fun and more expensive in the end.

I love the different aspect, but caution to carefully consider what your goal is in your street driver.

I'd actually love to see a BB, especially aluminum, in a C4.
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Old Dec 5, 2014 | 05:19 PM
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There was a guy with a procharged, fuel injected, BBC in a C4 on here a few years ago. It was blue, and he made it all fit under the stock hood. Some of the guys in the Forced Induction / Nitrous section helped him out with a chain drive set up for the blower.
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Old Dec 5, 2014 | 07:37 PM
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Originally Posted by neat
There was a guy with a procharged, fuel injected, BBC in a C4 on here a few years ago. It was blue, and he made it all fit under the stock hood. Some of the guys in the Forced Induction / Nitrous section helped him out with a chain drive set up for the blower.
Tony Dee, I think ??
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Old Dec 6, 2014 | 07:02 PM
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Originally Posted by JackDidley
Tony Dee, I think ??
yup, it was tony. He had a 540 with a f2 procharger if I recall. I'm curious what ever happened to that car.
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Old Dec 6, 2014 | 11:07 PM
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Originally Posted by qwiketz
yup, it was tony. He had a 540 with a f2 procharger if I recall. I'm curious what ever happened to that car.
Last post was 8 / 2013. Still had it then.
https://www.corvetteforum.com/forums...post1584642054
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To 454 into 90 c4

Old Dec 7, 2014 | 09:33 PM
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Do a search for "ZR2 big doggie corvette" that is the one GM did.
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Old Dec 10, 2014 | 09:51 AM
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Originally Posted by cormorant71
I have a 454 MercCruiser that would be awesome in a C4!
Which outdrive would you use Bravo II / III?

Sorry I just couldn't resist......

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Old Dec 10, 2014 | 10:45 AM
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Originally Posted by beerme
Which outdrive would you use Bravo II / III?

Sorry I just couldn't resist......

The Bravo II is pretty bullet proof, BIII is has too much techno wizzadry...

Bravo II

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