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Author Topic:   Which Engine??
dpfalls
Journeyman

Posts: 6
From: Salem, VA, USA
Registered: Feb 2003

posted 02-07-2003 01:29 AM     Click Here to See the Profile for dpfalls   Click Here to Email dpfalls     Edit/Delete Message   Reply w/Quote
I have a '67 Galaxie and a '71 Maverick.
I intend to retro-fit EFI to both cars. I am currently deciding which engine I want for the Galaxie. I am either going with the 5.0 or the 4.6 sohc. I do realize that I will have engine placement issues using the 4.6 that I will not have with the 5.0. I do not see the wiring being too much more difficult either way. Winsor Fox has stuff to make this easy, but they are somewhat snobbish about the engine you must use. The Crown Vic/lincoln 5.0 engines are far easier to get than the Mustang. Converting one from speed density to mass air does not look to be too difficult. What I am interested in is the merits of the 4.6/5.0 engines themselves. Which engine will provide the best overall driving experience in a road driven car. I want enough power so that I am not embarassed by the ricers. I am not looking to race Cobras or any of that like. As long as I get a complete donor with a good wiring harness, I am not intimidated by the electronics.

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dpfalls
Journeyman

Posts: 6
From: Salem, VA, USA
Registered: Feb 2003

posted 02-07-2003 01:44 AM     Click Here to See the Profile for dpfalls   Click Here to Email dpfalls     Edit/Delete Message   Reply w/Quote
Of course, I have a 460 out of a '78 Mark V. I also have a good C6 with the TCI Breakaway converter. I put this stuff in a 1978 T-bird. It was quite an improvement over the 351m/fmx combo. I suppose I could always use this combo in the Galaxie. I already have the Crites frame mount set for puting the 460 into it. What would you guys do and why? The 460/C6, 5.0EFI/AOD, or 4.6/AOD???

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 02-07-2003 10:24 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Welcome to M&M !
Based on what you have available my pat answer would be...."the only thing better than cubic inches is MORE cubic inches!"

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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dpfalls
Journeyman

Posts: 6
From: Salem, VA, USA
Registered: Feb 2003

posted 02-07-2003 02:28 PM     Click Here to See the Profile for dpfalls   Click Here to Email dpfalls     Edit/Delete Message   Reply w/Quote
Moneymaker,
I understand why you would prefer a 460. If it was just the go pedal I was concerned about, I would agree too. As a matter of fact...It would already be done. I am also concerned about driveability, economy, and I am always a little different. I have had '67 Galaxies for the past 15 years. (Since I was 18.) That was being different then. I have rebuilt the suspension with a PST RUBBER front end kit, springs, shocks, and new front and rear sway bars. I have converted the Manual drums to Power disc/drums. I got all my brake conversion hardware from another 1978 Tbird. (10 years difference and it's almost the same car as the galaxie in many respects.) I still need to finish sorting the brake system. I like road trips. I am thinking that the smaller engines will give me the best balanced car overall. Will it do a 13 sec quarter...No. I feel it will probably be at least as quick as the 289/fmx that was stock. Which of the two small motors would be better.

- David

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SteveLaRiviere
Administrator

Posts: 33989
From: Saco, Maine
Registered: May 99

posted 02-07-2003 02:52 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Keep in mind the 4.6l modular is a higher winding engine with not a lot of low end torque. The 5.0l will be a little better, but I'd have to agree with Alex and choose the 460 to get all that metal moving.

Welcome to M&M!

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dpfalls
Journeyman

Posts: 6
From: Salem, VA, USA
Registered: Feb 2003

posted 02-07-2003 04:51 PM     Click Here to See the Profile for dpfalls   Click Here to Email dpfalls     Edit/Delete Message   Reply w/Quote
OK, assuming I keep the 460, I need to resolve an induction issue. The intake that I am using is a 1970 factory 4bbl unit. The Carb I am using is the bottom of the barrel Holley 600 vacuum secondary. It is a small carb, but this is an unmodified engine. The problem is that I am running way too rich. I can rebuild a carb, but what I am not sure of is all the ways of tuning them. I am getting 8mpg in the Tbird. With the factory 4bbl and 1978 intake, I was getting 12mpg in the Mark V that the engine came out of. I had a 71' Marquis with a 429 and got 20mpg highway. What do I need to do to reach the best combination of economy, power, and reliability?

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 02-07-2003 04:56 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
You can make a 460 every bit as efficiant if not more so if it's well tuned in a big boat of a car. More torque = less throttle requirment to more the same amount of weight an equal distance.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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