Skywriter51
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I would appreciate any help I can get. Not sure if the diesel will replace the 454 gas engine
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Iam 0lder, just like My motorcoach. It has A 454 gas engine, Think that big thing Would be better with a diesel . Any suggestions would be great
- Thread starter Skywriter51
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Will L.
Well-Known Member
LS 6.2, add turbo even better. Great engine, more power, slightly better mpg. Less maintenance.
Going to a diesel then Cummins or duramax.
Way more expensive investment- and since you are asking, I assume you are not a Modern diesel mechanic. So that is a world of mess.
Most GOOD diesel conversions are around $50,000 and up depending on the rig.
Going to a diesel then Cummins or duramax.
Way more expensive investment- and since you are asking, I assume you are not a Modern diesel mechanic. So that is a world of mess.
Most GOOD diesel conversions are around $50,000 and up depending on the rig.
Most modern crate motors will work, modern EFI is a stand alone system, turbo or no turbo your choice...
People are putting these in everything and they are geared towards standalone engine control for ease of use...
ZZ 632
LSX 502
LSX 454
LS7 427
People are putting these in everything and they are geared towards standalone engine control for ease of use...
ZZ 632
LSX 502
LSX 454
LS7 427
If you have 50K +++ a diesel would be my choice IF you can find a shop to convert it....
JayTheCPA
Well-Known Member
Welcome to TTS!
Is it better to get rid of the 454 for a diesel? Depends.
New diesel? Not if the system needs DEF.
And what motorcoach? I had a buddy whom had a Class B with the GM 6.0L gas v8 and 6 speed tranny. Claimed that he got 10 mpg running up and down the East Coast when limiting speed to 55 mph as there was no rush to get anywhere. Only reason he got out of the Class B was that he wanted to go back to a travel trailer.
If the 454 is in a Class A, going to diesel starts to make sense. Related, this configuration likely has either a 3 or 4 speed tranny, so going to a 6 speed will help as well.
Is it better to get rid of the 454 for a diesel? Depends.
New diesel? Not if the system needs DEF.
And what motorcoach? I had a buddy whom had a Class B with the GM 6.0L gas v8 and 6 speed tranny. Claimed that he got 10 mpg running up and down the East Coast when limiting speed to 55 mph as there was no rush to get anywhere. Only reason he got out of the Class B was that he wanted to go back to a travel trailer.
If the 454 is in a Class A, going to diesel starts to make sense. Related, this configuration likely has either a 3 or 4 speed tranny, so going to a 6 speed will help as well.