Headers for L83 swap

[73K5BlazerSS]

Which headers have some of you used on L83 swaps? I tried using the manifolds from the Yukon my engine came from, but the flange is way too close to the frame. I also didn't want to cut the frame to create more room.
I'm curious which brands fit best, or maybe another GM vehicle with manifolds that will fit?

 

[Fastereddie]

Which headers have some of you used on L83 swaps? I tried using the manifolds from the Yukon my engine came from, but the flange is way too close to the frame. I also didn't want to cut the frame to create more room.
I'm curious which brands fit best, or maybe another GM vehicle with manifolds that will fit?

I used speed engineering swap headers on the k5 we did

 

[73K5BlazerSS]

I'm guessing these are probably the ones you used? They look nice and they're a great price. Did you have any clearance issues?

LT Swap Shorty Headers| Camaro, Chevelle, Nova, C10, K10, OBS Truck (LT1 LT4)

(In Stock) Speed Engineering LT swap shorty headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our LT swap shorty headers are mandrel bent, tig welded, and feature polished stainless steel construction. All of our LT swap shorty headers have been...

speed-engineering.com

 

[Fastereddie]

I'm guessing these are probably the ones you used? They look nice and they're a great price. Did you have any clearance issues?

LT Swap Shorty Headers| Camaro, Chevelle, Nova, C10, K10, OBS Truck (LT1 LT4)

(In Stock) Speed Engineering LT swap shorty headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our LT swap shorty headers are mandrel bent, tig welded, and feature polished stainless steel construction. All of our LT swap shorty headers have been...

speed-engineering.com

Yeah that’s them. They fit good. If I remember right, I had to slightly kink one of the metal spark plug sleeves.

 

[73K5BlazerSS]

Once again thanks for the advice Fastereddie ! These fit great, and I can still access the spark plugs very easily.
They even come with V band connectors and the O2 sensor bung is welded in.

 

[Operator238]

@Fastereddie before I purchase too, why not do long tubes?

 

[sweetk30]

my 2 wheel burn build i did stock manifolds for 03 5.3 and just had to cut and clock collector flange left side and take around 1/4" off right frame rail at already clearanced frame spot . pics are in it in my links in the sig line below .

 

[Fastereddie]

my 2 wheel burn build i did stock manifolds for 03 5.3 and just had to cut and clock collector flange left side and take around 1/4" off right frame rail at already clearanced frame spot . pics are in it in my links in the sig line below .

Ls is different from Lt

 

[Fastereddie]

@Fastereddie before I purchase too, why not do long tubes?

I think they make long tubes just have no experience with them