Olds ticket to 9s... LS swap adventure.

[Northernregal]

Yeah, try running .002" and push some RPM on a BBO. This is why almost all stock 455's pushed hard, ended up knocking. My clearances are .0022" rods, 2" journals and .0025" on 2.5" mains on my 330 stroker crank, will see how long it lives with 5500 RPM blasts. Our Olds V8's are 30 to 50+ years old, some made at a very sad time in automotive history. At Fleming decided to try a new failure for the Olds V8, valve destruction. The LS is a very sturdy platform but so is nearly every new design motor. As soon a the warranty is up and the car paid for, my 3.6 Pentastar is getting a Sprintex Supercharger. What are the main and rod sizes on a 6L LS? I would imagine their cranks are also light, forged and in a super stiff bottom end, all helps allow tight clearances. Yeah, G bodies and their wonderful no rust protection, you got off lucky. Put some paint protection on that sh*t. Looking good.

Having a deep skirt block the surrounds the mains, plus 6 bolts makes a huge difference. The solid lifter valley, webbed cam bearing area all make it stiffer. Its the evolution of the design. All LS platform have 2.1" rod journals and 2.55" mains, you can put a 4.8 crank in an LS7 and rock a short stroke 350 to 8000rpm. I found an LS7 block locally and seriously thought about it.

Thanks for the Positive review. I promise I will slather it in black paint and probably roll on some undercoating.

He's legit Croatian. lol. Used to be my Electronics tech before the world fell apart.

 

[Northernregal]

Bracing the rear suspension area continues.

Bought myself a decent little tube notching dealy. Going to really need a bender now. Too much fun!

Fish plates to cross bar, prior to welding in cross bar (lesson learned). Almost Instagram worthy welds too. La de da!

Cross bar welded out, started putting in trellis support pieces but they are only tacked.

The bar across the shock mount is more for emotional support until coil overs happen. Its all going to be connected, and as its 1.125" 0.120" wall tubing, its not adding a bunch of extra weight. I should weigh some and figure it out after.

Just 2 body mounts and beefing up the front lower suspension mounts to do tomorrow and I can start cage work. Super excited!

 

[81cutlass]

Just watching to get ideas for bracing the rear IF I end up notching my frame

 

[Rktpwrd]

Fuel cell? B cuz no room for a stock tank anymore...

 

[Northernregal]

Fuel cell? B cuz no room for a stock tank anymore...

I Disagree sir. Plenty of room. Stock tank is a couple of inches behind the shock mounts and I'm not going past them.

Just watching to get ideas for bracing the rear IF I end up notching my frame

Contemplating the frame notch as well. I fit 275/60 15 already so I don't know if there will be a huge benefit.

Maybe someone else can comment who drag races? My understanding is taller would be more effective than, say a 295?

 

[64nailhead]

Fuel cell? B cuz no room for a stock tank anymore...

I installed a piece of flat stock in a similar location to Duke’s rearmost pipe to hang most all of my fuel system from. It clears the stock gas tank easily.

 

[Burning]

Bracing the rear suspension area continues.

Bought myself a decent little tube notching dealy. Going to really need a bender now. Too much fun!

Fish plates to cross bar, prior to welding in cross bar (lesson learned). Almost Instagram worthy welds too. La de da!
View attachment 161080View attachment 161081

Cross bar welded out, started putting in trellis support pieces but they are only tacked.

View attachment 161082View attachment 161083

The bar across the shock mount is more for emotional support until coil overs happen. Its all going to be connected, and as its 1.125" 0.120" wall tubing, its not adding a bunch of extra weight. I should weigh some and figure it out after.

Just 2 body mounts and beefing up the front lower suspension mounts to do tomorrow and I can start cage work. Super excited!

Looks good man! Plan on doing any bracing to the middle of the frame?

 

[Tony1968]

I installed a piece of flat stock in a similar location to Duke’s rearmost pipe to hang most all of my fuel system from. It clears the stock gas tank easily.

Agreed. My setup is very similar

 

[Northernregal]

Looks good man! Plan on doing any bracing to the middle of the frame?

Other than boxing and the lower control arm mounts, probably not. I figured I'm going to leave that for 25.3 cage stuff.

 

[Rktpwrd]

I Disagree sir. Plenty of room. Stock tank is a couple of inches behind the shock mounts and I'm not going past them.

I installed a piece of flat stock in a similar location to Duke’s rearmost pipe to hang most all of my fuel system from. It clears the stock gas tank easily.

Agreed. My setup is very similar

Well excuuuuuuuse the hell outta me!!
😁