454 to Diesel Swap

[ZachT]

I have a 98 Chevy C2500HD with a 454 and 4L80E. I was wondering if anyone had some information, thoughts, done it before, anything about swapping to a diesel engine. I know the 5.9 12 Valve is a popular swap, but I was wondering about doing a 6.5 or 6.2 swap. Is there any advantage to swapping in a 6.5 or a 6.2? Can they be modified to get more power? Because I know stock the 454 came with more power and torque than both the 6.5 and the 6.2. Also looking to swap the 4L80E for a manual transmission. Any information would be greatly appreciated.

 

[white_trash88]

Dont

 

[ZachT]

Dont

Any reason why not?

 

[white_trash88]

Any reason why not?

They are notorious for cracking blocks and heads, also boiling their turbos over, theyre indirect injection so its extremely difficult to make power. Their compression ratio is about 5 - 6 more than cummins

 

[ZachT]

They are notorious for cracking blocks and heads, also boiling their turbos over, theyre indirect injection so its extremely difficult to make power. Their compression ratio is about 5 - 6 more than cummins

So a Cummins would be the way to go?

 

[white_trash88]

So a Cummins would be the way to go?

Yes, the cummins is the far superior choice in diesels to swap in.

 

[someotherguy]

Yeah either swap in the Cummins or leave it alone. You will not be happy going from a 454 to a 6.2/6.5, guaranteed, and the truck will be worthless once you get through.

Richard

 

[axtman]

check local laws in several states its illegal to take a vehicle from gas to diesel. you may have trouble getting it inspected and approved for road use.

 

[ZachT]

check local laws in several states its illegal to take a vehicle from gas to diesel. you may have trouble getting it inspected and approved for road use.

No emissions testing in either state that I live in so not worried about the legality of it.

 

[burnhedge]

Only advantage to a 6.5 is fuel mileage. My 3500 4x4 srw is getting 18-20 mpg with 4:10 gears and toting a heavy bale bed and a half ton of tools.

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