Bstrang6

Can I reuse the stock cross member/mount/TA bracket if I am using a 7004r with my 5.3 swap?

Zach/90\irocZ

iTrader: (6)

Yes as long engine mounted and same spot would use sbc lsx style mounts

Bstrang6

I was planning on using the Hawks mounts that allow me to use the stock clam shell on the motor

Bstrang6

Here's what I have for a parts list so far, aside from the wiring and fuel what should I add to bolt a 5.3 out of a truck in this car? I am picking up an fbody accessory drive and a ls1 intake with fuel rails and injectors this weekend.

Crank Spacer for 700r4 - GM parts Direct -pn 12563532 - $25
Convertor Bolts - Gm Parts Direct - pn 12563533 - $5
TV cable/bracket - BowTieOVerDrives.com - Part #: TVEZLS1BR - 169.95
Motor Mounts - Hawks - PN sp-971 - 89.99

Pocket

iTrader: (24)

You need Fbody clamshells off a 98-02 LS1 to use the hawk mounts. For a budget 5.3 conversions assuming you're starting with a V8 car... Use the SBC adapter plates with a 1" setback. There are diagrams found via google for a DIY job

Bstrang6

Yes we have a 85 z28. I went ahead and got the hawks, I heard with the plates I wouldnt have enough room to notch the K member for the 4th gen AC compressor. I have those, the 99 corvette fuel filter with regulator in it, and found a deal on a 5.3 that was in a trans am wrecked, getting the whole motor with accessory drive, f body harness, pcm, and 4l60e for a smoking deal on Sunday. Just have to figure out what Im gonna have to do to adapt the stock fuel lines to the regulator and the ls1 fuel rails, have a few buddies that have done several ls swaps so hopefully they will help with wiring, and I should be set to go!

Bstrang6

Im going to start a new thread since this one has a misleading title to the questions at hand now that I am going with a different transmission and I cannot edit it. If a mod could delete that would be great

Ozz1967

iTrader: (4)

Older post here, do you know if the Spohn motor mounts using 4th gen clamshells will allow me to use the factory transmission cross member?