Say i got a smokin deal on a 421 SBC long block. Now i want to stuff it into a 95z roller that i have. I need to know what i can do as far as ignition/fuel/cooling goes. There are a couple parameters i would like to stay within.

-Needs to be injected
-Would like to avoid stand alone engine management if possible.

Also what has to be changed with the cooling? Is the reverse cooling configuration of the 4th gen's hard to reconfigure for an SBC, i dont want to do any machining to convert to reverse cooling.

From what i have found so far using the search function it might be possible to fit a distributor. Also the single plane to EFI conversions seem to be pretty trick but isnt there a pre made setup i could get?

Appreciate the insight
steve

 

You need to change your cooling system in the car around... not the motor, can't get there from here.

What did you all get in this motor?

Bret

 

Personally I would stay away from "smokin deals" unless you are compleately confident in your ability to inspect what you are buying, especially when it is going to cause issues like your lack of a lt1 cooling system, among other things...

 

Change the cooling in the car, get rid of the control for the factory computer(retain for guages and tranny) and run the engine like a Conventional SBC. Maybe get a Fast system if ya want EFI.

 

yea, what he (1racerdude) said ^, and search this forum, somebody recently posted in the LT1 section i believe about their old school sbc swap into an LT1 outfitted camaro er w/e. otherwise search online.

it really shouldnt be a big deal... just dont trust your Check engine light when it comes on saying the injectors won't respond er some crap like that, lol

 

Bret, its a motor that Tom was building that fell through and i guess he just wanted to get rid of the parts. I might get shot for telling but a set of fully ported AFR 210s, Solid Roller cam and all valvetrain goodies, That Motown iron block with the big 4.125 bore and a fully forged rotating assembly by scat i think. I wont tell the price. We really want to make this stuff work, dont mind spending the time and a reasonable amount of money. The guys over at Haddad Motorsports were thinking using a standalone for engine management only and retaining the factory computer for gages and such.

Steve

 

You don't need the factory PCM for the gauges. Only the tach and speedo come off the PCM. The aftermarket ECU will obviously include a tach signal. The VSS should be able to be interfaced with the speedo using an interface box from Dakota Digital. You will also need to find a way to turn the fuel pump on and off, since the stock PCM won't allow that to operate without seeing the low res pulse signal from the Opti, something you will obviously be missing. Its the lack of the Opti that's forcing you to abandon the stock PCM for your fuel and ignition control. Now... of you were to find a way to run the optical sensor on your Gen 1 engine.... say in the distributor housing.... you could keep the stock PCM.

 

well you need it or something else to control the transmission as well

 

He's got a T-56, yay for simplicity

 

Yeah its going into a M6 car so dont gotta worry about controlling the tranny. Thanks for the replys so far, its looking doable. I dont think it would be too much trouble to wire up a fuel switch so thats fine. It might not be worth the effort to try and fit the opti into the distributor housing, sounds to me like the better rout would just be to use a reluctor on the crank to feed a stand alone, i didnt want to spend the extra money but the price i paid for this stuff it will still come out less expensive.

Now how about the induction? I was thinking a single plane injection conversion. What would be the least expensive? Are those pre configured ones from holly and edelbrock any good?

Steve

 

Call Rons Fuel Systems. He has way better than the regular set ups.

 

Maybe I'm missing something here, but I thought the LT1 front cover would fit on a SBC.

So just run all LT1 accessories w/ an LT1 cover/waterpump/Opti, and I would think it would work. Block off the SBC distributor hole, and all would be well, wouldn't it? That would be the least expensive way of doing this, by far, since you'd already have everything to do it.

 

Don't think the cover will fit without some mods.
MSD makes a distributor that has the guts to run the injectors and the spark.