What fuel rails are these? Pics inside

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Mar 1, 2014 | 11:39 PM

WS6ICK2k

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From: North Carolina

What fuel rails are these? Pics inside

Wondering if you could identify these fuel rails for me. I wanted to use them on my fast intake but the height difference is to much to fit the bolts. Are there any adapters to make this work possibly spacers?

I was planning on using them on a Fbody with a ls1 if at all possible. Didn't have much luck in gen III section.

Thanks

Attached Thumbnails

What fuel rails are these? Pics inside-image-1631610241.jpg

What fuel rails are these? Pics inside-image-2117894009.jpg

What fuel rails are these? Pics inside-image-3707736002.jpg

What fuel rails are these? Pics inside-image-1053910277.jpg

Mar 2, 2014 | 09:04 AM

NOS327

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From: Wichita, KS

Looks like LS4 (5.3L front wheel drive, Impala SS or GXP). I don't have an answer for your spacer deal, but I think that's what your rails are.

Mar 3, 2014 | 07:19 AM

Exidous

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From: Under a rock

Do you still have LS1 rails around? Those definitely look like LS4 rails.

Mar 3, 2014 | 10:23 AM

ss performance

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If there is a number on the rails, on the sticker, run it in google and see what you come up with.

Mar 3, 2014 | 07:50 PM

CBM Motorsports

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From: Rancho Cucamonga, CA

Based on how wide the mounts look and the direction they point, it looks more like an LS7. The way the inlet comes to the center is a bit weird though...

Mar 12, 2014 | 08:16 PM

LS1MCSS

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It's LS4. Here is a picture of a complete engine.

http://www.ebay.com/itm/ENGINE-2007-IMPALA-5-3L-VIN-C-8TH-DIGIT-OPT-LS4-/191008770051?pt=Motors_Car_Truck_Parts_Accessories&hash=item2c79028803&vxp=mtr