Registry 8x Series V8 Swaps (8 Viewers)

[NeverFinis]

Is that a 255lph by any chance I’m trying to find the specs, no luck. I’m at work so it’s hard as well.

Hard to find specs specific to that Denso since they don't give specs. There are tests for the Supra MKIV Denso pump, but not much else out there. There is a substitute Carter pump for that Denso that is rated for a minimum of 40 GPH (151 LPH).

I did find the 2003-2004 Toyota Tundra/Sequoia Fuel Pump: 951-0017.

An alternate to the Denso 951-0017, AutoBest F4251, is rated between 50 to 60 GPH (190 - 227 LPH).

AutoBest F4251 says it fits our vehicle as well as many other models, including models with the 4.7L V8.

Fits Vehicles

• Toyota Tundra (2000-2004)
• Toyota Supra (1993-1998)
• Toyota Sequoia (2001-2003)
• Toyota Previa (1994-1997)
• Toyota Land Cruiser (1993-2007)
• Lexus SC400 (1996-2000)
• Lexus SC300 (1992-2000)
• Lexus LX470 (1998-2007)
• Lexus LX450 (1996-1997)
• Lexus IS300 (2001-2004)
• Lexus GS400 (1998-2000)
• Lexus GS300 (1993-2000)

I updated my original post to include the Denso 951-0017 for the 2003-2004 Tundra/Sequoia

 

[FlyinFaded]

Hard to find specs specific to that Denso since they don't give specs. There are tests for the Supra MKIV Denso pump, but not much else out there. There is a substitute Carter pump for that Denso that is rated for a minimum of 40 GPH (151 LPH).

I did find the 2003-2004 Toyota Tundra/Sequoia Fuel Pump: 951-0017.

An alternate to the Denso 951-0017, AutoBest F4251, is rated between 50 to 60 GPH (190 - 227 LPH).

AutoBest F4251 says it fits our vehicle as well as many other models, including models with the 4.7L V8.

Fits Vehicles

• Toyota Tundra (2000-2004)
• Toyota Supra (1993-1998)
• Toyota Sequoia (2001-2003)
• Toyota Previa (1994-1997)
• Toyota Land Cruiser (1993-2007)
• Lexus SC400 (1996-2000)
• Lexus SC300 (1992-2000)
• Lexus LX470 (1998-2007)
• Lexus LX450 (1996-1997)
• Lexus IS300 (2001-2004)
• Lexus GS400 (1998-2000)
• Lexus GS300 (1993-2000)

I updated my original post to include the Denso 951-0017 for the 2003-2004 Tundra/Sequoia

I bought the 951-0017 fuel pump, I will update once my swap is done and let you all know how it goes/ how the install goes as well. I imagine it will be fine.

 

[FlyinFaded]

Hard to find specs specific to that Denso since they don't give specs. There are tests for the Supra MKIV Denso pump, but not much else out there. There is a substitute Carter pump for that Denso that is rated for a minimum of 40 GPH (151 LPH).

I did find the 2003-2004 Toyota Tundra/Sequoia Fuel Pump: 951-0017.

An alternate to the Denso 951-0017, AutoBest F4251, is rated between 50 to 60 GPH (190 - 227 LPH).

AutoBest F4251 says it fits our vehicle as well as many other models, including models with the 4.7L V8.

Fits Vehicles

• Toyota Tundra (2000-2004)
• Toyota Supra (1993-1998)
• Toyota Sequoia (2001-2003)
• Toyota Previa (1994-1997)
• Toyota Land Cruiser (1993-2007)
• Lexus SC400 (1996-2000)
• Lexus SC300 (1992-2000)
• Lexus LX470 (1998-2007)
• Lexus LX450 (1996-1997)
• Lexus IS300 (2001-2004)
• Lexus GS400 (1998-2000)
• Lexus GS300 (1993-2000)

I updated my original post to include the Denso 951-0017 for the 2003-2004 Tundra/Sequoia

I’ve been reading and I see some guys talking about fuel filter issues with the lq4 swap. Something about a corvette fuel filter or a fuel filter on the fuel rails? Is this something that I’m going to run into and need for my swap?

 

[NeverFinis]

I’ve been reading and I see some guys talking about fuel filter issues with the lq4 swap. Something about a corvette fuel filter or a fuel filter on the fuel rails? Is this something that I’m going to run into and need for my swap?

You will need to have fuel pressure about 58 psi for ls motors. Corvettes had a combination fuel pressure regulator and a fuel filter. It is a cheap way to do both, and it is what many use.

 

[FlyinFaded]

You will need to have fuel pressure about 58 psi for ls motors. Corvettes had a combination fuel pressure regulator and a fuel filter. It is a cheap way to do both, and it is what many use.

View attachment 3927615

Ok thank you. So what ends up happening with the regulator that’s on the driver side rail if you use this instead? I do like this approach so we aren’t plumbing a new filter somewhere else.

 

[NeverFinis]

Ok thank you. So what ends up happening with the regulator that’s on the driver side rail if you use this instead? I do like this approach so we aren’t plumbing a new filter somewhere else.

My L96 doesn't have a fuel pressure regulator, which is why I went with the Corvette pressure/filter. You can continue to use your built in one, and just add an inline filter.

 

[FlyinFaded]

My L96 doesn't have a fuel pressure regulator, which is why I went with the Corvette pressure/filter. You can continue to use your built in one, and just add an inline filter.

yea, the lq4 have a regulator on the fuel rail on the driver side. hmm maybe i can still add a filter under the hood by the master cylinder so I am not cutting fuel lines. Hmmmmm...more digging i guess. Dont know the best way to do this.

 

[FlyinFaded]

Well probably stripped my marks adapter. What torque did y’all use to mount the t-case to marks adapter. Guess I should’ve just snugged it up. I’m embarrassed to tell you want torque I tried. But let’s say 27 foot pounds is too much. Figure if it was good enough for the t-case assembly it would be good to mount it.

Curious which holes were you heli-coiling the just the ones for the adapter or did you do need to do the ones for the crossmember mount on the bottom too? I am in prime position with my build to do this at the moment. And i just happened to come across this issue.

 

[NeverFinis]

Curious which holes were you heli-coiling the just the ones for the adapter or did you do need to do the ones for the crossmember mount on the bottom too? I am in prime position with my build to do this at the moment. And i just happened to come across this issue.

I think one has to be very careful torquing to Mark's adapter or using their provided socket head cap screws rather than flanged bolts. You will also need to reduce torque if using Anti Seize.

For Mark's adapter to the GM transmission, I used the GM flanged bolts that originally bolted the 2wd GM tail housing to the transmission. These are flanged bolts.

For Mark's adapter to the Toyota t-case, I used Toyota bolts where possible. I think there is one location that has to be a socket head cap screw.

Toss the remaining socket head cap screws....

Edited to add...I used the Mark's 6l80/90 adapter...which might have different issues from the 4L80e adapter..

 

[FlyinFaded]

SUM G9080 is my weapon of choice

So glad I came across this. Was trying to figure out what I needed. Thought I was gonna need block huggers using your mounts but glad to know I won’t.