Winging a 1971 K5 Blazer L96 6L90 Swap

[68ls1]

Originally Posted by HotRod4me

In tank fuel pump from Tanks Inc installed with Corvette pressure regulator and new shoes on stock rims. Love the look of these tires!!

I've got a coupe of questions about in tank pump
What part number is the one you used?
Did you have to modify depth? Tanks Inc quote max 12", where as I believe Blazer tank is around 13"
How is clearance of unit to floor, as there is not a lot of room there?

[HotRod4me]

I used the Tanks Inc PA-4 unit. The pump will flow 255 liters per hour and handle up to 630 HP with 60 psi of fuel pressure. I'm running a stock L96 motor that produces roughly 360 HP, but eliminated the mechanical fan, added a cold air intake and plan to run stainless headers with 3" exhaust. I'm guessing the little performance upgrades will add maybe 40 additional hp. The reason I went with the larger fuel pump is that I wanted to keep the option of running e85 if I wanted and e85 requires 25-35% more fuel.

Yes, I did end up extending the reach of the fuel pump arm roughly 3/4" and extended the pick/return lines, so the unit sat flat on the bottom of the tank. I also wanted to change the line to make sure I didn't have issues if I ran e85.

I'm not sure on the clearance at this point, but figured I could drop the tank down slightly if there are any issues.

Thanks for checking out my build and I'll keep you posted when I start to fit the body.

[HotRod4me]

Had to cut the output shaft on the 6L90 to fit into the Advanced Engineering adapter.

[HotRod4me]

Jim- You talked me into the polyurethane motor mounts. Hoping to get them mounted permanently in the frame with the motor, trans and transfer case this weekend.

[HotRod4me]

Made some good progress over the weekend. Got the motor, transfer case and transmission and LS radiator installed.

[HotRod4me]

Had to make a bracket for the transfer case. installed a 3/4" adapter plate and moved the transfer case back a total of 1-1/4", which moved the motor back a 1/2". I took a number of measurement and hoping nothing will interfere with the firewall. It will be close, but I think it will be ok. Anyone out there do a similar swap and can verify the clearance?

[HotRod4me]

Eliminating the long emergency cable guide, since the cable would rub on the driveshaft after moving the transfer case back.