H.O. Vs. Non-H.O.

QuantumMotorsports · 01-15-2001, 12:13 PM

Phil,

Sounds like you're pretty much set since you've got the parts off of your stang. One thing to look out for that I'm not too sure of is differences in the wiring harness of the grand marquis and the stang. Since you will be running the stang computer, you might want to find a pinout for each computer (I have one for a stang and a cougar) and make sure all the wires go to the same pins. I didn't have to change any at all so maybe the grand marquis will be the same as well. I do remember however that if you are running mass air stang computer you will need to relocate two wires to accommodate the mass air. ( I believe the web page said something about it, but it fails to mention that it's just if you're running mass air, not speed density) Anyway, have fun with that swap. I always love to hear about big old Mercs getting an engine upgrade so keep me posted.

------------------
Michael Black
Quantum Motorsports
Norman, Oklahoma

1988 Merc Cougar 5.0 HO, P&Ped heads, 2.25" custom mandrel bent dual pipes, T5 five speed tranny
15.43 @ 91.08mph (not shabby for a 3600 pound car)
60' 2.453 Street tires suck!!!

01-15-2001, 12:13 PM	#1
QuantumMotorsports Registered Member Join Date: Jul 2000 Location: Norman, Oklahoma, USA Posts: 597	Phil, Sounds like you're pretty much set since you've got the parts off of your stang. One thing to look out for that I'm not too sure of is differences in the wiring harness of the grand marquis and the stang. Since you will be running the stang computer, you might want to find a pinout for each computer (I have one for a stang and a cougar) and make sure all the wires go to the same pins. I didn't have to change any at all so maybe the grand marquis will be the same as well. I do remember however that if you are running mass air stang computer you will need to relocate two wires to accommodate the mass air. ( I believe the web page said something about it, but it fails to mention that it's just if you're running mass air, not speed density) Anyway, have fun with that swap. I always love to hear about big old Mercs getting an engine upgrade so keep me posted. ------------------ Michael Black Quantum Motorsports Norman, Oklahoma 1988 Merc Cougar 5.0 HO, P&Ped heads, 2.25" custom mandrel bent dual pipes, T5 five speed tranny 15.43 @ 91.08mph (not shabby for a 3600 pound car) 60' 2.453 Street tires suck!!!