New Hooker G-Body LS Swap System Preview
07-30-2020, 02:38 PM
#861
Thank you Todd! 1/4” on the evaporator would be acceptable, I saw your initial install had 5/8” (I’m hoping I get that lucky!), but either way I’m sure removing the coils, bracket, and likely valve cover would go a long way on making the engine wedge in there a little better.
So, the truck accessories will fit fine and the PS pulley will clear either style steering box just fine as long as I’m using the intended holes. I don’t want to use the stock truck compressor or notch the frame, so as long as the Holley high mount A/C with the OE style compressor will be compatible with the truck accessories, that would be a good setup.
I haven’t been under to look at the TH350 crossmember, but would it still be compatible with the Holley exhaust system? Or what keeps the Holley crossmember from working with a TH350? The mounting pad is pretty close to a 4L60e.
So, the truck accessories will fit fine and the PS pulley will clear either style steering box just fine as long as I’m using the intended holes. I don’t want to use the stock truck compressor or notch the frame, so as long as the Holley high mount A/C with the OE style compressor will be compatible with the truck accessories, that would be a good setup.
I haven’t been under to look at the TH350 crossmember, but would it still be compatible with the Holley exhaust system? Or what keeps the Holley crossmember from working with a TH350? The mounting pad is pretty close to a 4L60e.
The Hooker Blackheart exhaust system is not compatible with the stock TH350 or 2004R transmission crossmembers as they don't have the underside clearance required to install it. The mount on a TH350 is 4" further forward than it is on the LS type 4L60E transmission (multi-piece case with the mount in the extension housing) that the Hooker Blackheart transmission crossmember was designed to be used with. Even with that, the 4L60E mount is picked up with an adapter bracket that cantilevers forward off of the center pad of the Hooker Blackheart crossmember by about 2.5", so there's just too great a span to deal with to provide compatibility with the TH350 transmission. It would take a specific crossmember to accommodate that transmission and there's not enough potential sales volume to justify the cost of development.
07-30-2020, 07:09 PM
#862
TECH Regular
Excellent, that will work perfect with the accessories and A/C mount.
A 4L60e should be easy enough to come up with to make that work. No idea if my current trans is even usable.
A 4L60e should be easy enough to come up with to make that work. No idea if my current trans is even usable.
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witman69 (04-18-2021)
07-10-2024, 09:06 AM
#867
OK I know this is an old thread, & this is a long shot, but wondering if anyone has these G body LS swap headers uninstalled. Looking for a pic of the pipes before the collector on the drivers side.
Also looking for a pic of them in the car, how much clearance there is between the headers on the drivers side to the brake distribution block mounted on the frame.
THanks
Also looking for a pic of them in the car, how much clearance there is between the headers on the drivers side to the brake distribution block mounted on the frame.
THanks
07-11-2024, 09:01 AM
#872
TECH Senior Member
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G Atsma (07-18-2024)
07-18-2024, 11:28 AM
#877
OK well I worked on drivers side yesterday for over about 2 hours, removed steering shaft, coils, brake booster & wont go in from top or bottom. Found Holley's instructions afterwards for them & it says have to remove motor mount bolt, raise engine, install from bottom.
07-18-2024, 11:42 AM
#878
Maybe the shape of them, which can't be much different than my Heddman Headers. I put both in from the bottom, and if I remember right at the time I tried the top too and they worked that way also. 1-7/8" Primary 3" Collectors.
Removed Steering Shaft, Starter, Coils.
Removed Steering Shaft, Starter, Coils.
