68 Chevelle LQ4 W/4L80E Build

[spitfire980]

It been awhile since i updated you guys and alot has been going on!

My brother in law decided to get in on the muscle car action and got himself a 72 Vette. 350 Elderbrock pro flo fuel injected engine, TH400 transmission with mild shift kit, 1500 stall speed converter, headers and magnaflow exhaust system, ecklers L88 hood, 17" Cragar SS rims, Be cool radiator with flex-a-lite fans, dynamat'ed the entire cabin, ACC carpet, C5 seats and a CS144 Alternator. I also got the original matching number engine and hood in the sale.

My brother in law and i also got a 69 Chevelle to flip for profit. 350 motor with new heads and intake. PS, PB, 350 turbo tranny with shift kit. It has new quarters, trunk pan and floor pans. SS hood, 15" rims and power seats. I ordered CPP front and rear brake kit, ACC carpet to freshen the interior up, griffin aluminum radiator, Dynatech ceramic coated headers 1-5/8" into 1-3/4" and MuscleMaXX 2.5" exhaust kit. . Im going with BMW Atlantis Blue for paint. Still need to install the bilstein shocks and decide on how much to lower it by











In the meantime, iv been busy shopping and collecting parts for my 68. I got AC, AMD inner fenders, Willwood brakes and MC, 18"x9 rally wheels. UMI control arms, AAW kit, NW DBW 102mm TB, Magnaflow 2.5" exhaust system and the crown jewel, Holey Hi-ram for LS3/L92 heads

[WSSix]

Glad to see you're still making progress with the car. The new additions to the collection look great. Good luck!

[spitfire980]

Originally Posted by WSSix

Glad to see you're still making progress with the car. The new additions to the collection look great. Good luck!

Thanks! its finally all coming together







18x9 Rally wheels wrapped with Nitto NT555 255/45R18

It seems i got sent the wrong set for the wilwood rear brakes. The backing plates are not for a chevy 10/12 bolt. They seem to be more for a ford bolt pattern

[spitfire980]

Update: ordered the PSI harness, here is my order sheet

'02 VORTEC W/ 4L60E STANDALONE WIRING HARNESS (DBW)
THROTTLE BODY TYPE: DRIVE BY WIRE (2 ELECTRICAL CONNECTORS ON THROTTLE)
INJECTOR TYPE: MULTEC INJECTORS
TRANSMISSION TYPE: 4L80E (ELECTRONIC AUTO) + $25
OIL PRESSURE WIRING (F-BODY GAGE CLUSTER ONLY): NO
AC RECOGNITION: YES + $15
CRUISE CONTROL: NO
COOLANT TEMP WIRING (F-BODY GAGE CLUSTER ONLY): NO
FUEL LEVEL WIRING (F-BODY GAGE CLUSTER ONLY): NO


MOD-1018: 6 PIN THROTTLE BODY MODIFICATION +25.00
PCM-1003: LS/VORTEC ENGINE PCM WITH PROGRAMMING
THROTTLE BODY TYPE: DRIVE BY WIRE
TRANSMISSION TYPE: 4L80E (ELECTRONIC AUTOMATIC)
ENGINE SIZE: 6.0
MODEL: TRUCK (SILVERADO/YUKON/SUBURBAN/VAN/SIERRA/ESCALADE)
INTAKE MANIFOLD TYPE: VORTEC TRUCK
ENGINE YEAR: 2000
FUEL INJECTOR TYPE: VORTEC TRUCK
TIRE SIZE: 275/40/18
REAR GEAR RATIO (X.XX):CUSTOMER/TUNER WILL UPDATE

Total $916.20

Got the engine started but i have a problem with the accelerator pedal. The '07 Monte Carlo DBW pedal (Pt# 15831256) has 6 pins while the PSI harness has 16 pins with 13 wires running into the plug...any help?

'07 Monte Carlo DBW pedal (Pt# 15831256) with 6 pins


PSI harness has accelerator pedal harness with 16 pins




Something im missing here?

[Che70velle]

Originally Posted by spitfire980

Update: ordered the PSI harness, here is my order sheet

'02 VORTEC W/ 4L60E STANDALONE WIRING HARNESS (DBW)
THROTTLE BODY TYPE: DRIVE BY WIRE (2 ELECTRICAL CONNECTORS ON THROTTLE)
INJECTOR TYPE: MULTEC INJECTORS
TRANSMISSION TYPE: 4L80E (ELECTRONIC AUTO) + $25
OIL PRESSURE WIRING (F-BODY GAGE CLUSTER ONLY): NO
AC RECOGNITION: YES + $15
CRUISE CONTROL: NO
COOLANT TEMP WIRING (F-BODY GAGE CLUSTER ONLY): NO
FUEL LEVEL WIRING (F-BODY GAGE CLUSTER ONLY): NO


MOD-1018: 6 PIN THROTTLE BODY MODIFICATION +25.00
PCM-1003: LS/VORTEC ENGINE PCM WITH PROGRAMMING
THROTTLE BODY TYPE: DRIVE BY WIRE
TRANSMISSION TYPE: 4L80E (ELECTRONIC AUTOMATIC)
ENGINE SIZE: 6.0
MODEL: TRUCK (SILVERADO/YUKON/SUBURBAN/VAN/SIERRA/ESCALADE)
INTAKE MANIFOLD TYPE: VORTEC TRUCK
ENGINE YEAR: 2000
FUEL INJECTOR TYPE: VORTEC TRUCK
TIRE SIZE: 275/40/18
REAR GEAR RATIO (X.XX):CUSTOMER/TUNER WILL UPDATE

Total $916.20

Got the engine started but i have a problem with the accelerator pedal. The '07 Monte Carlo DBW pedal (Pt# 15831256) has 6 pins while the PSI harness has 16 pins with 13 wires running into the plug...any help?

'07 Monte Carlo DBW pedal (Pt# 15831256) with 6 pins


PSI harness has accelerator pedal harness with 16 pins




Something im missing here?

http://chevythunder.com/drive_by_wire.htm

Check out the link. It looks to me like your harness is intended to be used with a TAC module, which utilize 16 pins. I'm surprised the car will start without this connection.

[spitfire980]

Originally Posted by Che70velle

http://chevythunder.com/drive_by_wire.htm

Check out the link. It looks to me like your harness is intended to be used with a TAC module, which utilize 16 pins. I'm surprised the car will start without this connection.

It looks like the Monte pedal only works with Gen IV engines and ECUs and i have a Gen III, so do i need a Vortec or Vette TAC and pedal?

Thanks

[Che70velle]

Originally Posted by spitfire980

It looks like the Monte pedal only works with Gen IV engines and ECUs and i have a Gen III, so do i need a Vortec or Vette TAC and pedal?

Thanks

I believe that you are correct. Not 100% sure about that! but I think I read that with a gen 4 setup, the TAC module is not required. I was in the middle of researching all of that stuff, when I came across a stupid good deal on a new a Mast M90 setup, so I removed all of my GM electronics, and sold it all.

[spitfire980]

After 3 long and painful years, i finally have fenders and a hood on


Door gaps being checked




Floor pans had to be primered again for paint


Unfortunately, the regular hood wouldn't close with the Holley Hi-ram and tall and narrow mounts so i switched to the short and wide ones in the hope it will bring the engine down more but it was a no go.

Trimmed the X-brace on the underside of the bonnet but still didn't help so it either i get a Mid-ram or 2 inch cowl hood like toytech93 did. Im going to go with the Mid-ram and switch over the openings in order to retain the 102mm opening and the NW TB but i got the engine to run, ill try to upload a clip of that

[Che70velle]

Good for you! Upload the clip!
Gaps look good. I was about 3 years in for final metal fitment also, so keep your head up!

[WSSix]

Progress is progress. Keep at it and you'll be done before you know it.