Confirm/deny - 6.2L exhaust manifolds exit in the same place as SBC exhaust manifolds

[AJMBLAZER]

I've seen references to it but no one has truly confirmed it.

Do SBC and 6.2L exhaust manifolds exit in the same place?

I've heard a reference or three to them exiting in the same place so you could bolt up a full exhaust system meant for a SBC gasser truck to a 6.2L diesel truck.

I'd really like a 3" single exhaust system on The Blazer and I figure if this is true it wouldn't be terribly hard to do.

OEM Y pipe + few feet of 3" pipe + Flowmaster single 3" mandrel bent exhaust = viola!

 

[Russell]

Confirmed! Done so myself on a mid 80s crewcab truck.

 

[kennyw]

Close enough that a SBC exhaust will bolt up to the 6.2L manifolds during a swap. I did it myself on my old '79 K10.

 

[AJMBLAZER]

Awesome.

Now to start fixing stuff.

 

[maynardogle]

So...Ya think Chevy did that on purpose, so they didn't have to design and hang a different exhaust for the 1% of the trucks that came down the assembly line with diesel engines? Every now and then I see engineering genius in these old Chevys, but seldom by the guys who design cast iron exhaust manifolds.

 

[K5dreamer]

the 6.2/6.5 engines were designed to bolt right into any place a SBC would fit. which is why im so tempted to do a 6.2 swap into something like a 65 Impala with a 5 or 6 speed overdrive and see what kinda highway mileage i could get out of a land yaght cruiser.

 

[6.2Blazer]

So...Ya think Chevy did that on purpose, so they didn't have to design and hang a different exhaust for the 1% of the trucks that came down the assembly line with diesel engines? Every now and then I see engineering genius in these old Chevys, but seldom by the guys who design cast iron exhaust manifolds.

That makes sense...until you consider that most 6.2 equipped vehicles had true dual exhaust while gas versions did not.

 

[KansasTwister]

That makes sense...until you consider that most 6.2 equipped vehicles had true dual exhaust while gas versions did not.

That was because of emissions mainly. My 77 454 burb had factory duals. Emissions free is the way to be.

 

[AJMBLAZER]

Dual exhaust used to be the "H.O. option".