Motor Swapping

[WillWagner]

On the mechanical engines, unfortunately, no 250-300 hp, but, the only parts needed to make your 1551 to the 1553 are a turbo, injectors and a fuel pump. The injectors and pump you have can be recalibrated to the 1553 spec so you don't have to buy new or exch if you don't want. The turbo has different housings...but I have seen and run engines that have been uprated w/o the correct turbo. Head, pistons, block are the same betwen the 2 CPLs. The 230 hp 1553 CPLs run VERY good! They used to put them in 35ft motorhomes and they ran and pulled great. See if you can find a truck salvage yard. There were a ton of the FL series w/the c series in them. As for the weaker h. gas. No it would be no weaker...but, the 1551 CPL had an issue with white smoke. The different head gasket was used for piston grading when the deck was surfaced, if you use the .0197 gasket, you will probably have a white smoke issue more pronounced than b-4 if you had one. The smoke issue was due to an internal f/p timing issue.

 

[RANDYLBARNES]

dt466 and fuller rto6610

I have been doing a little research about the engine swaps myself. I am looking at a truck that has a DT466 rated at 250 HP with a top rpm of somewhere around 2700 to 2800. It has a Fuller RTO6610 10 speed transmission. The high gear ratio of the RTO6610 is .80. I am getting different answers as to the ratio of the 3053a. Can someone help me out here?

 

[red devils dude]

Spicer 3053A ratio's
First or Low gear
6.00:1
Second gear
3.31:1
Third gear
1.89:1
Fourth gear
1.00:1
Fifth gear or Overdrive
0.85:1
Reverse
5.90:1

 

[cranetruck]

According to TM 9-2520-246-34 for the 3053A:

See avatar on the left for confirmation
<<<<<<5th gear and 1100-20 tires.

 

[red devils dude]

looks like the OD gear is a little iffy I looked it up three times in three different places too.