caddy 500 with NV4500 Q?

[ncgamedog]

anybody have an idea if this is possible looking for the best bang for the buck swap in my tow rig (85 siverado 305/700r4/208 3/4t axles). also what would be my best bet for a t-case? i have a couple of 205's lying around. reason i dont want a th400 is that i want some flavor of OD and i think the 4500 would be cheaper than say a 4l80e. or does anyone think the 700r would live if rebuilt w/ some better parts? thanks -justin

 

[dremu]

Do a search ... pretty sure that no manuals came with the BOP bolt pattern, so you'll hafta use an adapter plate. Coupla threads about this recently.

-- A

 

[johnnychimpo]

The only manual bellhousing you'll find that may work would be one from a late '70s GM truck that came w/ a 350 diesel. These are rare so goodluck. I've never found one myself.

 

[b454rat]

I think my buddy has one in his yard......can find out this week.....

 

[boz42]

A search will net you all the info you need, but here is a quick run down

1.caddy has no pilot bearing hole, but can be drilled
2. BOP to chevy bell adapter from jegs or summit
3.Very pricey aftermarket flywheel, cause a Cad 500 never came w/ a stick
4. A 700r4 will be on borrowed time
5. you can mate the 4500 to a 205, but I think I would go w/ whatever it has behind it, unless you are going to wheel it.

 

[smalltruckbigcid]

Last but not least is that the 4500 uses a special size bellhousing (think$$$) so you'll have to get one of those to fit a small block chev and then use an adapter for the bellhousing to engine block.
George

 

[ncgamedog]

arent BBC and SBC bolt pattern the same? so if the 4500 came from behind a vortec 454 wouldnt it have the correct bell? what other trannys would be good options that might be less expensive? thanks- justin

 

[smalltruckbigcid]

arent BBC and SBC bolt pattern the same? so if the 4500 came from behind a vortec 454 wouldnt it have the correct bell? what other trannys would be good options that might be less expensive? thanks- justin

That might work. You might wan't to check trustyk5's post about putting a 4500 behind his 6.2. Lots of good 4500 info there. It was in the garage as I recall. The 4500 is the only manual with OD that will take the torque in a heavy vehicle that I know of.
George

 

[ncgamedog]

i was thinking that an auto would be an easier swap but built OD autos are expensive as crap. like a 4l80e w/ stand-alone controller is upwards of 3500$. I converted my blazer (sm465) to hydro clutch using wilwood and Novak parts and it was pretty much a bitch and though it works well it could be better. so i would not look forward to retrofitting a pedal assm. and master cyl to this truck too. i think if i do it i will build my own pedal, hanger and linkage from scratch to get the proportions right.

 

[boz42]

You are right about the 4l80e being high dollar. How cheap do you think you will get by w/ the nv4500 swap though? Last time I chesked the flywheel alone is about 6 bills? Espesially if you adapt a 205 behind it. The Dodge models may have came w/ a 205. I know there is a difference between the dodge & chevy 4500's but can't remember what it is. I think the chevy version is the more favored one.

Edit: $550 @ MTS LINKY below https://ssl.perfora.net/s176119129.oneandoneshop.com/sess/utn;jsessionid=1546f0556fa773e/shopdata/0020_Brackets=2C+Pulleys+=26amp=3B+Engine+Accy=27s/product_details.shopscript?article=0020_Flywheel%2B-%2BBillet%2BSteel%2B=28DT02=29