alx

Hello. Please ,tell me,can I use big block engine on my C4 1992 ?I meen the size between front suspension & transmission connecting to the engine.
Somebody made these things?My tranny is 4 L60.
Thank you.Alex.Russia.

Fubar569

i have done this swap

it is very involved...there is alot you have to do

you need to notch the front crossmember for oil pan clearance
you must use a 6.75" balancer or you will have to notch for balancer clearance
you will need to move the steering rack forward about 2" if you want to use serpentine belt accessories or a cog belt drive. Otherwise, you can use a single groove crank pulley and not move it at all
the motor mounts are a drop in fit with no modifications
you will have to clearance the HVAC cover that fits over the heater core OR replace this with a unit from a ZR1 corvette
the exhaust is a bitch. sanderson brand block hugger headers, stock big block manifolds, or custom welded headers are your only options that are proven to fit
you will need to seriously modify the transmission for additional power
you will need to swap rear differential for the same reason

then you need to cope with making all of the electronics play nice with one another, and make sure the stock gauges will work.

My thread covering the swap into my 1984 corvette is documented in the sticky at the top of the forum. I suggest you read it. The pictures will not work, however i can send pictures via email if interested

mltt_knnth

Can you tell me if you think after market frames with c-4 front suspension would have all of the very same fitment problems as as with using the c-4 ? I have a big block 65 and wnt to upgrade. Ken mltt_knnth@yahoo.com

mnstrlt1

The biggest hurdle (in my opinion) for the 92' would be the fuel injection and electronic functionality. With that said, you can forget about passing a visual emissions inspection.

Esham (a forum member) has an EFI big block c4 as well. He's also very friendly to chat with.

esham

Street shop can do it without any problems.

http://www.americanmusclecarsaustral...38710#msg15915


Chris, the OP with the 92 posted his question in 2007.

Beach Bum

The guys in the below link used to specialize in putting Big Blocks into C4's back in the 90's.... not sure if they still do it, but they have the know how. I use to race with the owner of the shop and also against many of his customers.... they ran pretty good and I know they were happy customers.

http://www.corvetteshopsandiego.com/

Thus, if you're not interested in attempting to do yourself, they might still be an option for you.

Having said that, with todays technology, you can get good power out of a simplier swap such as an LSX or a big cube SBC gen 1.

Good Luck with whatever you do.

mnstrlt1

Haha! Didn't even notice that!