1995 chevrolet k2500 TBI 454 to 350 swap

[Cuckfield]

I have a chevrolet k2500 with a 7.4l 454 in it, immaculately kept. However, I bought it with 255k on the odometer and I want to change out this guzzling 454 when it eventually dies to a tbi 5.7l.

I know going from a 5.7 to a 7.4 is way more involved, but what barriers impede me from going to the weaker engine?

 

[GoToGuy]

1) cost. The basic eng. 350 or better 383. Accessory mounts. Hose, coolant, AC. Electronics,wiring. Exhaust, including Cats if required. Reduced tow capacity.
2) benefit- whatever your happy with.

 

[grampadirt]

Might be a while before that big block dies...mine has 274,500 on it and still runs great.It uses only a quart of oil between oil changes and does not leak any coolant.I wouldn't trade it for anything.

 

[Cuckfield]

1) cost. The basic eng. 350 or better 383. Accessory mounts. Hose, coolant, AC. Electronics,wiring. Exhaust, including Cats if required. Reduced tow capacity.
2) benefit- whatever your happy with.

Gotcha, gotcha. Might be cheaper to just do a 454 rebuild. Thanks. Wasn't sure how many things were compatible backwards.

Might be a while before that big block dies...mine has 274,500 on it and still runs great.It uses only a quart of oil between oil changes and does not leak any coolant.I wouldn't trade it for anything.

Yeah, mine is rock solid as well. I suppose I'll have to see how long it kicks for.

 

[grampadirt]

Gotcha, gotcha. Might be cheaper to just do a 454 rebuild. Thanks. Wasn't sure how many things were compatible backwards.

Yeah, mine is rock solid as well. I suppose I'll have to see how long it kicks for.

Got a pic of it? Sounds like a pretty nice truck.

 

[GoToGuy]

Before more complex electronics, and designs that were specific to bigblock or smallblock this swap would have been a much more simple undertaking. Still not impossible, but have a plan and a parts list.

 

[Cuckfield]

Got a pic of it? Sounds like a pretty nice truck.

Sorry for the late reply friend. Here it is.
Got her from someone who drove it down from Washington. Spent about 3000 bucks fixing a whole bunch of random finicky crap, but the trans and engine are solid. She's my carpenter truck.

 

[grampadirt]

Sorry for the late reply friend. Here it is.
Got her from someone who drove it down from Washington. Spent about 3000 bucks fixing a whole bunch of random finicky crap, but the trans and engine are solid. She's my carpenter truck.

That's a solid looking truck,with propper maintenance and a little love it's gonna serve you well.BTW,what year is it?

 

[1997]

1995 from the title ...
OP, if we were closer i'd do a swap with you, 95 -350 for the 95- 454, haha.

 

[Cuckfield]

1995 from the title ...
OP, if we were closer i'd do a swap with you, 95 -350 for the 95- 454, haha.

Hahahaha. The next neat trick would be finagling you into helping me out the 350 in.