Sticking with the original question, it is a no brainer in my book, between the BB and SB chevy, choose the small block. There is no point in using a BB and it will be that much harder and that much heavier than the SB.
x2

Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
Sticking with the original question, it is a no brainer in my book, between the BB and SB chevy, choose the small block. There is no point in using a BB and it will be that much harder and that much heavier than the SB.
I think the problem with the S/C was the cooling system. When it overheated the first time due to the radiator explosion, I believe the engine was already hurt and never recovered. I put 100,000 miles on this engine and babied it with 2K mile oil changes. I don't think high mileage had anything to do with it, but rather a faulty cooling system and would recommend to anyone who is thinking of installing one to install a 3 stage radiator and a low temp thermostat to prevent this same thing happening to them. I also ran with premium gas, octane boost to reduce the detonation and synthetic oil.
With regard to the price of the S/C, I think it cost me a little more due to the fact that TRD doesn't make the adapter kit anymore for the new S/C's, which is needed for the 1993 and 1994's. This S/C would obviously come with this adapter kit, so it would bolt right onto the 1993-1994 engine. As I said before, I would entertain all reasonable offers, as I have no current use for the S/C.
newbie question what is 3 stage radiator? What about Ron Davis radiator? I heard that we can use 100 series thermostat which run 160 instead of 180.![]()
If you have to ask then ....
-B-
I think the problem with the S/C was the cooling system. When it overheated the first time due to the radiator explosion, I believe the engine was already hurt and never recovered. I put 100,000 miles on this engine and babied it with 2K mile oil changes. I don't think high mileage had anything to do with it, but rather a faulty cooling system and would recommend to anyone who is thinking of installing one to install a 3 stage radiator and a low temp thermostat to prevent this same thing happening to them. I also ran with premium gas, octane boost to reduce the detonation and synthetic oil.
With regard to the price of the S/C, I think it cost me a little more due to the fact that TRD doesn't make the adapter kit anymore for the new S/C's, which is needed for the 1993 and 1994's. This S/C would obviously come with this adapter kit, so it would bolt right onto the 1993-1994 engine. As I said before, I would entertain all reasonable offers, as I have no current use for the S/C.
How bout a bit of a reality ck from a guy that goes thru this a lot. First, I have an SC on my 80 installed at 103k, still running strong at 135k. I have the original radiator, er, quite compromised compared to stock, and a stock thermostat.
RE: Problem. The biggest issue I saw with the SC is the first few hundred miles while the computer is learning the 'bigger' motor. The knock, ck engine light and bucking was so bad, I thought for sure I messed something up. What I *didn't do* was try to drive through the knock, in fact, downshifted and babied the thing for about 500miles, then all was good. I can see a lot of issues if it was just dropped in and run.
RE: Fix.
* First, pick a budget for a swap. Then double it, that's the reality of engine swaps and incidentals.
* Second, assess what you have. A new (overpaid for) SC with a blown motor. Don't put a diime into the blown motor, find one complete and drop it in, bolt up the SC and drive it. The second SC install on a 1FZFE swap won't cost you much at all.
Do a spreadsheet on this, be realistic. The biggest issue you appear to have is the labor for the swap. In my shop, that's time as needed, including chasing ancillary parts and fabrication. Most guys here have done them themselves, and can probably help you, but I'd be very surprised if this is realistic. Taking a WAG, a budget of 10 large for a SBC swap would be conservative by the time you have a shop get it all done and the A/C, cruise control etc adapted.
Don't get me wrong, I was involved in a one off LT1 swap into an audi quattro several years ago, and I know this is easier. But the reality is you have too much sunk in the SC frankly. IME, best case scenario, figure you max asking price is Dan replacement price, which is ~3k. As a used unit (installed lo miles - matters not actual mileage), a threshold % under that (reference: When I bought mine used I paid a lot less than the 2500 asking - and the guy had it advertised for quite some time).
I'm not discouraging you from a SBC swap, and in fact, I might even encourage it if you didn't already have all that money sunk in the TRD hair dryer. Plain and simple you are upside down into this project in a big way. A hit on the SC AND a hit on the SBC, sounds... Expensive?
HTH and my .02
ST
1994 FZJ80 Supercharged
as an aside, I don't quite see how a "lower temp" thermostat could help with overheating since it will be fully open when it's overheating anyway...
I agree with Sumotoy, great analysis of the situation. What I can add as one of the very few that have done a 80 series v8 swap is I am very happy thus far on the the results of my v8-80 series but still have a few things to truely make it worthy to drive coast to coast. I did not have a budget and really didnt care want I spent doing it. I also enjoy creating oddities like this and the challenge of making them work just like the factory would. A swap in a 80 series for sure is not for someone who:
Needs their truck for a daily driver (long time to do, its almost a year for me)
Does not have excellent fab skills and a shop full of tools and machinery.
Is afraid of wiring and studying the factory diagrams while thinking about it in your sleep.
Thinks a swap would add monetary value to your rig. Highly modified trucks are money pits and have poor resale.
Does not have about $5000 CASH to spend to do it right. this is about where I am right now I would guess. If I was in the business to do this and did it for someone the first time blindly like I did mine $15000 plus parts wouldnt be enough (300 man hours at $50 per hour). I know I have that kind of time into mine.
Well best of luck whichever route you take. You still have the best 4wd on the planet, be happy for that.
Kirk