. There have been several big block swaps on here. Somebody with the right info will chime in.
454 in a C4
Thread Starter
Florida turtle advocate
Joined: Dec 2003
Posts: 4,280
Likes: 6
From: Gulfcoast Salvage Englewood, Fla
St. Jude Donor '05-'06
454 in a C4
Anybody ever done this on here...Does anyone make headers for this combo... We are thinking about dropping one in a 91 6 speed coupe and looking for info that might save some heartache...Thanks in advance...love this forum
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
It can be done... it has been done... but there is a lot of custom fabrication that has to be done to make it happen.
I would much rather build a big small block.
Oh, there is a weight penalty, too.
I would much rather build a big small block.
Oh, there is a weight penalty, too.
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
How about a 454 small block. You can build one. But to answes your question, its been done. It takes a deep pocket and alot of patience. From what I understand there is alot of fabracating you have to do. Do a search I think someone here has one...
Thread Starter
Florida turtle advocate
Joined: Dec 2003
Posts: 4,280
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From: Gulfcoast Salvage Englewood, Fla
St. Jude Donor '05-'06
It's my business partner(who has 3 vettes) not a forum member who wants to do this...I would do a stroker or something instead if it were me... I knew I could put it on here and at least gather some information on the deal...He has a 91 six speed car that someone carburated already so he figured it might be a good one to make a big block car out of...
Team Owner
Joined: Oct 2004
Posts: 81,241
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From: altered state
St. Jude Donor '05
I agree with bogus. Small blocks can be difficult enough to work on in vettes;not to mention wight, and the fact that vettes, especially BB vettes are one giant heat sink underhood. Cooling issues, etc. Not trying to discourage you, but its far more cost effective to build a 454 as mentioned above that would stay with the best of them and still handle.
Thread Starter
Florida turtle advocate
Joined: Dec 2003
Posts: 4,280
Likes: 6
From: Gulfcoast Salvage Englewood, Fla
St. Jude Donor '05-'06
I'm trying to talk him out of...He wants something "different"...Maybe I can find him a 409,now that would surely be "different"
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From: Kentucky
Team Owner
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From: San Pedro CA
Originally Posted by 93 ragtop
I agree with everyone that the small block would be the better choice, but you gotta admit, that big block really looks intimidating under that hood, exspecially with those turbos. 
Drifting
Joined: Nov 2002
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From: 2003 Points Champ Great Lakes Corvette Challenge; 2006/2007 Winner MSD True Street
D&M Corvette dropped a 454 into a C4 around 1991 or so.
Vanity plates were "ZR WHAT".
Located in Downers Grove, Illinois on Ogden Ave.
Owner is Dave.
I am sure he could tell you is heartache,...er..story.
Matt383
Vanity plates were "ZR WHAT".
Located in Downers Grove, Illinois on Ogden Ave.
Owner is Dave.
I am sure he could tell you is heartache,...er..story.
Matt383
Advanced
Joined: May 2004
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From: Aiea Hawaii
Originally Posted by Daffy427
Anybody ever done this on here...Does anyone make headers for this combo... We are thinking about dropping one in a 91 6 speed coupe and looking for info that might save some heartache...Thanks in advance...love this forum
Why not go all out and go with the ZZ572?
Melting Slicks
Joined: Sep 2000
Posts: 3,150
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From: Carlsbad, CA CA
Originally Posted by MY84REDC4
Why not go all out and go with the ZZ572?
BTW: Tonydee64 is got a 502 big block with a procharger in his C4. Go to the C4 FI section to see his pictures.
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From: Indianapolis IN