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Username Post: 1991 caproice classic 305 fuel injected        (Topic#344973)
leon phelps 
Valued Contributor
Posts: 4129
leon phelps
Loc: Croydon Manor, PA
Reg: 06-04-05
05-25-17 03:34 AM - Post#2692809    

hello,

have a 65 c10 that I was planning on putting this running 305 from a 91 caprice classic into. seems the transmission is a 4l60 with the kick down cable.

needs a transmission, so unsure if it is worth it to rebuild this transmission.

friends are telling me to get a vortec intake manifold and carb, rewire it and just use a turbo 350. not sure exactly what is involved and if it is worth it money wise since I can buy 4.8 vortec out of an s10 for $1200 for the whole thing.

any suggestions appreciated.



 




raycow 
Honored Member
Posts: 27079
raycow
Loc: San Francisco, CA
Reg: 11-26-02
05-25-17 08:07 PM - Post#2692950    
    In response to leon phelps

  • leon phelps Said:
....needs a transmission, so unsure if it is worth it to rebuild this transmission.....


Your post is confusing to me, so I hope you can answer a few questions and maybe clear things up.

Which trans are you saying is bad - the one in your 65 truck, or the 4L60 on the 305?

What kind of engine and trans do you have in your truck now?

Is the engine in the truck good or bad?

Does the 4.8 from the S-10 come with a working trans?

Does either the 305 or the 4.8 come with its engine management computer and the associated wiring? I am assuming they both have electronic fuel injection. If the 305 doesn't, please say so.

Which engine are your friends telling you to put the carb intake on?

Ray


Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
leon phelps 
Valued Contributor
Posts: 4129
leon phelps
Loc: Croydon Manor, PA
Reg: 06-04-05
05-27-17 09:09 AM - Post#2693126    
    In response to raycow

no engine currently in the truck.

the s10 will be complete power plant. engine, trans harness computer exhaust. would need a fuel tank and lines.

I have a caprice classic now. is running needs trans. has everything in the car, I am in the process of removing but it looks futile with the cost of the transmission. the caprice has fuel injection. I can use the gas tank in the truck with some filler neck fabrication.



Edited by leon phelps on 05-27-17 09:11 AM. Reason for edit: No reason given.

 
raycow 
Honored Member
Posts: 27079
raycow
Loc: San Francisco, CA
Reg: 11-26-02
05-28-17 12:54 PM - Post#2693242    
    In response to leon phelps

Thank you for the clarifying the details.

So if I'm understanding you correctly, the 305 runs ok on its stock FI and you have everything you need to put it into the truck except for a trans and a driveshaft.

The 4.8 runs ok on its stock FI, comes with a good trans, and has everything you need to install it in the truck except a fuel tank, lines, and a driveshaft.

This means the total cost for the 4.8 is going to be $1200 + whatever the tank, lines and driveshaft cost.

For the 305 it's going to be just the trans and driveshaft. I can't see any good reason to spend extra $ for an intake and carb if the FI works ok and you already have the parts needed to install it in the truck.

Can you get prices for the 305 trans and the 4.8 tank and lines so you can make a direct cost comparison? The driveshafts should cancel each other out, so you can disregard those for the moment.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
Rick_L 
Honored Member
Posts: 27251
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
05-28-17 04:40 PM - Post#2693269    
    In response to raycow

Thing is, the performance both in power and overall driveability is going to be so much better with the 4.8.



 
raycow 
Honored Member
Posts: 27079
raycow
Loc: San Francisco, CA
Reg: 11-26-02
05-28-17 07:46 PM - Post#2693297    
    In response to Rick_L

No dispute there. The OP will have do decide if the performance gain is worth the additional cost and work to install.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
leon phelps 
Valued Contributor
Posts: 4129
leon phelps
Loc: Croydon Manor, PA
Reg: 06-04-05
05-29-17 04:07 AM - Post#2693322    
    In response to raycow

thanks Rick. I kind of knew the answer but hearing it from someone else is best.

now if I can only find a buyer for my 91 f-150.



 
65_Impala 
Very Senior Member
Posts: 3925

Reg: 12-29-02
05-29-17 05:36 AM - Post#2693334    
    In response to Rick_L

S-10's never came with a 4.8L, only the 4.3L V6 which I would never use for a swap.

With no idea of what year of truck you're getting this other powertrain from it's hard to compare it with the Caprice. The Caprice has a very simple fuel injection system that is easy to work with. The Caprice engine is also basically a Chevy small block so you can convert it to to a carburetor rather easily. It is not a Vortec head engine so do't try to use a Vortec intake on it.

Lots of people still use 700R4 or 4L60 transmissions. An older S10 700R4 or 4L60 will not be capable of working behind a V8 without getting it rebuilt properly to V8 specifications. Any GM's newer then 93 will have an electronic transmission so you will have to use the fuel injection or a stand-alone transmission controller.



 
leon phelps 
Valued Contributor
Posts: 4129
leon phelps
Loc: Croydon Manor, PA
Reg: 06-04-05
05-30-17 01:33 PM - Post#2693528    
    In response to 65_Impala

I may have misheard the guy and the 5.3 or 4.8 may come from 1500 pickups. Guy is willing to let me drive it before we make a deal for the power train.

The caprice engine has the valve covers with the studs in the middle, I was told they are vortec heads. Was I misinformed?





 
65_Impala 
Very Senior Member
Posts: 3925

Reg: 12-29-02
05-30-17 05:22 PM - Post#2693582    
    In response to leon phelps

You know about the LS swaps already so you know its not as simple as plugging an engine pull into the truck.

Center bolt valve covers don't mean the engine has Vortec heads.



 
CowboyTrukr 
"6th Year" Silver Supporting Member
Posts: 3820
CowboyTrukr
Loc: Salt Lake City
Reg: 06-20-09
05-30-17 08:22 PM - Post#2693613    
    In response to 65_Impala

TBI heads also have center studs.

Greg

'95 K1500 Z71 EC Short Step 5.7L+0.040/NV3500
'00 Explorer XLT 4.0 V6 Auto
'94 K2500 5.7 NV4500 ECLB - SOLD

"The only thing necessary for evil to triumph is for good men to do nothing" Sir Edmund Burke


 




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