Hey all. Short time lurker and newb here.

Two weeks ago, I spent 4 days wrenching on my 454 for a 4 day weekend trip...And another half day working on it at the camp site!

I would LOVE to drop a diesel (overdrive mandatory!) in it but I was also thinking about a SBC and overdrive tranny swap.

Right now, the powertrain is the 454 big block, a TH400 and 14 bolt corporate with :4.56 gears. Cruising speed is about 45mph. At 55, she's singin'. At 65, she's a screamin"!

The 454 is being over spun like 80% of the time.

The manifolds were cracked when I bought it so I replaced them with headers. I KNOW they're glowing at highway speed. I haven't melted any wires or caught on fire yet!

I have the timing advanced to the threshold of audible ping and the starter binds a little on start up. It does run cooler then it did but the temp still climbs while in the mountains.

I think my RV weighs about 7300 dry.

I thought about swapping out the rear for a :3.73.

I do have a 6BT in an old Econoline bus that ran through a Ford C6. (Very nice adapter kit) I could bolt that to an E4OD with the plate already on it.

I have a 6.9L Hino 6cyl bolted to an AT545 (no overdrive!)

I thought about finding a wrecked diesel G2500 or something, with the 6.5.

Since I don't have the time or money to do any of the engine swaps I really want, I was also thinking about a (4bbl headers and cam) 305 or 350 with a 4L60/80 through that :4.56 rear.

Is anyone running a ~8000Lb RV with a small block?

I had a K30 mason dump that weighed about 6800 and the 350 with headers moved it right along...power to spare. I hauled a 6 ton track hoe on a 9 ton trailer for two years with that truck.

I think the only time I would kick myself with the small block (if at all) is if I were towing a pickup truck.

I could buy a 2WD 1990 Silverado tomorrow for $500...OBO. Engine (supposedly) rebuilt 50k ago.

Anyone have any thoughts?

Don't worry about hurting my feelings ;-)

Views: 1361

Reply to This

Replies to This Discussion

Just pinning this onto my previous side note:

Driving my truck around for a couple days, I'm getting acquainted with it all over again. I drive it completely different now.

Looking at the new OD compared to the old one (ZF5 42 vs E4OD), the difference is, numerically, very small.

The auto had a .71 OD and my new 5 speed has a .77 OD.

The comparison via old but-o-meter, however, is profound.

That little 6/100ths of a rev makes an unbelievable difference!

Only one way to over come that problem and its about $1400.  A 2 speed gear vendor gear box right behind the trans or attched to the nose shaft of the rear axel. 

I talked to a guy about a low mileage, late 292 today. Supposedly runs like a Swiss watch.

Also, I discovered that the Gear Vendors / Doug Nash / Laycock overdrives are pretty much the J Type unit on the back of my Volvo M46 transmissions.
I happen to have a spare.

The Laycock to TH400 adapter is a MILLION dollars, so I'll be fabricating one, I guess.

The 292 came out of a dump truck that weighs more then my RV. Should be ok.
It's the same overdrive unit I have in my shop.
The Laycock J type is what the Gear Vendor unit is based on.

The adapter tube, I can make.
The shaft, not so much.

RSS

Members

HOW TO MEMBER POSTS

  •         How To Links 

-Search Good Old RV's

-Start a New Group 

-Roof Repair Photos & Products

-Repair an RV Roof

-Pick Roof Sealer   

-Understanding RV Electrical Systems 

-Get RV Insurance   

-What to Look For When Buying a Used RV

-Jack Installs Fuel Injection in his Dodge 

 RV ARTISTS 

 Paige's VintageTrailer Art  

 Paige's VintageTrailerFabric

 Artist Roads                                            Sandy's Stained Glasshttps://www.pinterest.com/pin/552605816752050167/     

                      

COME JOIN US on GOOD OLD RVS

If you love classic and vintage RVs then come Join us. Come on in and have some fun. JOIN HERE NOW

Forum

insulation 4 Replies

Started by Barbara in RV Repair & Maintence. Last reply by Barbara 2 hours ago.

1992 C Coachmen 3 Replies

Started by S.Heins in Class C RV discussions. All things Class C related.. Last reply by Billy lotz 12 hours ago.

Steel valve stems

Started by Jack Wasmuth in RV Repair & Maintence Oct 28.

Events

Videos

  • Add Videos
  • View All

JOIN US - COME ON IN!

If you love classic and vintage RVs then come Join us.

 Come on in and have some fun.         JOIN HERE NOW!

 Dedicated to a simpler, more rewarding and fun way of life in a Good Old RV... 

Vintage Travel Trailers, Vintage Campers, Camper Restoration, Bus Conversions, Vintage RV Forums, Old RVs, Tiny Homes, Boondocking

YOUR OWN GORVs T-Shirt!

A work of art by member Paige Bridges

Get your Good Old RVs T-Shirt HERE

+++++++++++++++++++++++++++++

 Disclaimer - Please Read it

Enjoy this site and use it totally at your own risk.

By using or viewing this site YOU agree to Hold Harmless anyone associated with it including other members. Also, YOU agree that YOU are solely responsible for ANY and ALL actions, results or damages. Members "opinions" are just that and any repair or alteration comments or recommendations are by folks who are not licensed repair  or mechanical professionals. Any repairs or modifications you do totally at YOUR OWN RISK. Use licensed professionals for all work to avoid possible serious injury or damage. Use  banks for purchases.  Have fun!

Copywrite & Trade Mark Registered GoodOldRV© ,GoodOldRVs©, GoodOldRVs.com©,GoodOldRVs.net©,GoodOldRV.Com©

© 2019   Created by Russell E Johnson.   Powered by

Badges  |  Report an Issue  |  Terms of Service