guys, looking at getting a C4 with purpose of being a footbrake bracket car that would run mid to low 7s, and possible still be streetable although i'm not sure i care about streetability. how easy would it be to yank the engine and tranny out of a C4 (either the L98 or LT1 platform) and drop in say a ZZ4 crate motor or other carbed big block?? Am i going to run into major fitment problems and have to fab a bunch of stuff up or will it bolt in pretty easy? I can put a big cowl 4"+ hood on if that helps. would be looking at dropping a TH350 most likely into this..... is that going to be a problem??

lastly, what can these rear's hold in terms of power? would like to just put in a 10 or 12 bolt which i know is a chore and expensive but not sure what i could get away with.

thanks for any input from folks who may have already done this!!!

slick

 

This should be good

 

Low 7's in the 1/8 mile or 1/4 mile?

 

Big block swaps have been done and from what I understand it isn't that difficult. If you're going for 7's in the 1/4 you're going to need a rear-end swap. Many members have done a Ford 9" conversion which is quite possible. Good luck in whatever your endeavors.

 

no no-- 1/8th mile only, sorry i thought i said that!!! those times in the quarter are out of my budget !! all the tracks i run are 1/8th bracket competition

 

First, we're going to need to know the source if whatever you're on.


L98s, LT1s, and ZZ4s are "other big blocks"? I didn't realize those engines were carbed.


Not for a guy planning on running 7's.


Talk about a fart in a skillet!!! What difference does it make what a stock rear end will hold up to, if "would like to just put in a 10 or 12 bolt".


Most of us have 7 second daily drivers. Just read up on what everyone else has done. Don't forget the airfoil, the throttle switch, and the hydrogen in the tires.

RACE ON!!!

 

another noobie gets his head handed to him - and from the post - very well deserved....

 

He should try to use the search feature.

 

a 7 in the 1/8 doesnt sound that unreasonable to me. however i dont drag so im not sure.

 

Do a search in the forum like it was suggested, there are lots of knowledgable guys here to answer any questions, but you usually get the best response from them when they can tell you've done the homework first.

Don't get discouraged, and good luck.

 

yep... (I hear the train horn in the distance)

CFI gets the quote of the week... "fart in a skillet"

To the OP... for what you're wanting to do, you're best served buying a 3rd gen F-body... The platform is a lot easier to work with, especially with what you have planned (plus it'll be loads cheaper in the long run)

 

I put a ZZ4 in my 86 - went in real easy - but as far as I know it's built on a 350 - small block! I used the Injection and TPI - so you b might run into fitment issues with a carb.

Carl johansson

 

OMG.... CFI cracks me up! I gotta have a drink with that dude someday!

 

Yes, that was real tactful, I'm sure he will post again real soon. Maybe, if we are all lucky, he will tell everyone else what a bunch of azz clowns the people on Corvette Forum are.....

 

If my memory is correct, low 7's equals mid 11's in the 1/4 mile.
If it is a dedicated race car, gut everything that does not matter, throw 350 hp to it and a sticky set of tires. Alot of guys on this forum are running mid 11's and driving their car almost daily. Your goal should be reasonable.

 

It would be helpful to know what year C4 you're getting; the wiring harnesses and computers are different, depending on the year. Some years are the same, others aren't.

The first series of engines you listed are small block (L98, LT1, ZZ4). All these will drop right in, bolt right up and there are lots of performance parts available. In addition, there are thousands of guys who have modded these engines - from mild to wild.

Going with a big block is a different story though. There are quite a few guys have done it successfully, but it's NOT a drop in. This is due primarily to the big block's larger demensions. The steering rack will interfere and maybe even the A/C box on the passenger side, etc.

Swapping one small block Chevy engine for another is relatively simply until you get to the point of changing "families". If the car you buy is L98 TPI, and if you stay with a MAF L98 fuel injected setup replacement engine, then it's a piece of cake.

Swapping to a SPEED DENISTY engine setup into a car which has a MAF wiring harness will call for some wiring mods. Not too bad though. There are several guys on this Forum who've gone that route and can walk you through it.

If you choose to go the LTx, LSx route, you'll be in for some serious wiring and sensor tweaks if you want to keep all the dash readouts working.

Dumping the Fuel Injection setup and going with a carb isn't too difficult, once you solve the hood clearance issue. This may be the most trouble free way to go especially considering all the sensors on a Fuel Injected engine and the car's intended use.

Hope this helps.

Jake

 

yeah what was up with that? why are people being hostile towards this guy? this is the first time he has shown up here.

 

I operate on the assumption that anyone that posts here is looking for help/information or is wanting to share. So although he/she may not touch all the bases that I may want touched, I try to help as best I can.

Why??

Because I remember the days when I didn't know which end of the spark plug went in the hole.

Jake

 

Good thing it was just spark plugs........j/k

 

People here do have a tendency to eat their dead. It has something to do with the annonymity of sitting behind a keyboard.

However, some people do ask some strange questions that make you ask, " is he for real."

As for CFI-EFI, I too would like to meet him someday. He is probably alot like me. Just a little more brutally honest and less tolerant of buffonery.


Beam me up Scotty, there is no intelligent life here!