4.9L Inline 300c.i. performance parts????? - Ford Truck Enthusiasts Forums



4.9L Inline 300c.i. performance parts?????

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-25-2007, 08:11 PM
turt turt is offline
Freshman User
Thread Starter
 
Join Date: Jul 2007
Posts: 26
turt is starting off with a positive reputation.
4.9L Inline 300c.i. performance parts?????

Does anyone know where I can get some parts for my 1979 F150 Motor? Its a 4.9, 300c.i. inline 6. Im looking to get rid of the egr carb spacer and replace it with a regular spacer. Has anyone done this yet with maybe an older year spacer with non egr that fits the same? Also what about carburetors? Do they have any aftermarket ones?
Reply With Quote
  #2  
Old 08-25-2007, 08:22 PM
MBDiagMan's Avatar
MBDiagMan MBDiagMan is offline
Posting Guru
 
Join Date: Dec 2004
Location: NE Texas
Posts: 2,107
MBDiagMan is gaining momentum as a positive member of FTE.
There are lots of performance parts for these engines. I would not bother with changing spacers. You will need to enlarge your carburetion if you plan on boosting horsepower. There is a four barrel intake manifold available for these engines. There also are headers, cams and all the regular stuff available.

You might start by googling Cliffor 6 = 8.

Hope this helps,
Reply With Quote
  #3  
Old 08-25-2007, 08:25 PM
mhg mhg is offline
Posting Guru
 
Join Date: Sep 2003
Location: savannah,ga
Posts: 1,274
mhg is starting off with a positive reputation.
your best bet is a 4 barrel manifold with a 350 to 500 cfm carb
the use efi exhaust manifolds
if you go into the motor there are some good cams that
will really wake it up
check out the engine forum here and at www.fordsix.com
Reply With Quote
  #4  
Old 08-25-2007, 08:30 PM
turt turt is offline
Freshman User
Thread Starter
 
Join Date: Jul 2007
Posts: 26
turt is starting off with a positive reputation.
heh..... sounds like fun. I was just looking to clean up that area a bit. I dont like having that EGR spacer there with a thousand rubber plugs on it. I like to get rid of all the emissions stuff. I feel like Im stickn it to the man that way.
Reply With Quote
  #5  
Old 08-25-2007, 09:05 PM
havi's Avatar
havi havi is offline
I'll have the Roast Duck
 
Join Date: Jul 2002
Location: Northshore, MN
Posts: 9,422
havi is a name known to allhavi is a name known to allhavi is a name known to allhavi is a name known to allhavi is a name known to allhavi is a name known to all
I did it. you'll probably want a non egr distributor. search the 300 forum here for all the mods, like chebby rockers, efi manies, 390 holley carb offenhauser dp intake, etc...
Reply With Quote
  #6  
Old 08-26-2007, 10:10 AM
trinogt's Avatar
trinogt trinogt is offline
Posting Guru
 
Join Date: Apr 2001
Location: Eustis FL
Posts: 2,349
trinogt is starting off with a positive reputation.
Just remember that having an EGR valve is not a bad thing... It injects exhaust gases that are stripped of oxygen, and this is a cooling effect (kinda like nitrous, in a way) and allows you to run more ignition timing, thus more power.

I think Clifford's site is cliffordperformance.com , but the fordsix.com site is great too. I once saw a '78 F150 with a 4.9 in it, and the owner had it cammed, dual exhaust, racing clutch, roller rockers, and 4 barrel edelbrock. It was by far the best sounding inline six I have ever heard. Sounded like a dragster idling! The truck was jet black and lowered. I hope some day the new owner will join this forum! (was in Calgary) It was for sale at a car lot for about $6000... Worth every penny in my opinion! Estimated 300 hp buildup.
Reply With Quote
  #7  
Old 08-26-2007, 10:44 AM
Harte3 Harte3 is offline
Postmaster
 
Join Date: Dec 2006
Location: Spokane, WA
Posts: 3,454
Harte3 is gaining momentum as a positive member of FTE.Harte3 is gaining momentum as a positive member of FTE.
Start reading just about every post on this Forum and the Ford Six Performance Forum. Then make a plan and go for it.
Do a search here for Col Flashman and you will find what can be done to make an ultimate street machine.
Comp, Crane, Isky, Reed...all grind cams for the I6. Offy and Clifford have intake manifolds. Clifford, Hedman, etc make headers...some use EFI exhaust manifolds for a cheap upgrade.
Reply With Quote
  #8  
Old 06-21-2011, 07:17 PM
Captbs32's Avatar
Captbs32 Captbs32 is offline
Senior User
 
Join Date: Jun 2011
Location: Denver, NC
Posts: 161
Captbs32 is starting off with a positive reputation.
Did anyone do this?

This meaning delete the old POS carb spacer and get a machine shop to make another one? On the 300 I6? also I have the factor spacer but everything is plugged in that and the only vacuum hose I have going to the carburetor is the hose for the advancing timing thing on the distributor. Anything wrong with that?
Reply With Quote
  #9  
Old 06-22-2011, 09:07 AM
MBDiagMan's Avatar
MBDiagMan MBDiagMan is offline
Posting Guru
 
Join Date: Dec 2004
Location: NE Texas
Posts: 2,107
MBDiagMan is gaining momentum as a positive member of FTE.
Nothing at all wrong as long as the carb, timing& advance curve are correctly calibrated

Doc
Reply With Quote
  #10  
Old 07-19-2011, 11:42 AM
Engine126 Engine126 is offline
New User
 
Join Date: Apr 2009
Posts: 14
Engine126 is starting off with a positive reputation.
Hesitation under load

I have had my engine & trans rebuilt. Installed a Clifford 6= 8 manifold, Holley 390 cfm carb, and efi 4.9 exhaust manifolds. Tuned carb idles perfect but under load I get a stumble on acceleration. I have to feather gas pedal and was told to tighten lock nut on accelerator pump. Still a little stumble on acceleration. Tightened nut 1/4 turn. Also never replaced Cat convertor would I get more power better gas mileage if I replaced catalytic convertor. Thanks Mike
Reply With Quote
  #11  
Old 07-19-2011, 11:43 AM
Engine126 Engine126 is offline
New User
 
Join Date: Apr 2009
Posts: 14
Engine126 is starting off with a positive reputation.
Sorry trans is C-6
Reply With Quote
  #12  
Old 07-19-2011, 11:53 AM
Harte3 Harte3 is offline
Postmaster
 
Join Date: Dec 2006
Location: Spokane, WA
Posts: 3,454
Harte3 is gaining momentum as a positive member of FTE.Harte3 is gaining momentum as a positive member of FTE.
That stumble is usually reduced/eliminated by going up to a #37 squirter. You are most likely experiencing a lean stumble...just needs a little more squirt from the accelerator pump.
Reply With Quote
  #13  
Old 07-19-2011, 08:15 PM
Engine126 Engine126 is offline
New User
 
Join Date: Apr 2009
Posts: 14
Engine126 is starting off with a positive reputation.
Thank You

Thanks a million for the advice. I will put in my order for .37 squirter from Holley. I will post results. Thank You again
Reply With Quote
  #14  
Old 07-19-2011, 09:25 PM
Harte3 Harte3 is offline
Postmaster
 
Join Date: Dec 2006
Location: Spokane, WA
Posts: 3,454
Harte3 is gaining momentum as a positive member of FTE.Harte3 is gaining momentum as a positive member of FTE.
Actually, you might be able to pick it up locally. Some parts houses do carry Holley parts.
Reply With Quote
  #15  
Old 07-19-2011, 11:14 PM
Engine126 Engine126 is offline
New User
 
Join Date: Apr 2009
Posts: 14
Engine126 is starting off with a positive reputation.
Summit

Ordered from Summitracing. I called around all had to order it so I ordered it on Summit 16.95 shipped. It says they will ship a pair. Are there 2 I have to replace or just one? Thanks
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
77 F150 Leveling Kit. Ronnie Basil Smith 1973 - 1979 F-100 & Larger F-Series Trucks 1 05-11-2015 12:07 PM
Looking for a EGR valve plate/spacer CoachmenCaperXl Ford Inline Six, 200, 250, 4.9L / 300 2 08-19-2011 11:05 AM
88 ford bronco with 4.9 inline 6 jody27803 1978 - 1996 Big Bronco 3 12-07-2009 12:26 PM
4.9 throttle body spacer? mrgn_mtt Performance & General Engine Building 2 06-24-2007 01:38 AM
Chip for Inline Six? pdewitz Computer Chips & Tuners 3 11-20-2004 02:15 PM


Go Back   Ford Truck Enthusiasts Forums >

Tags
49, 49l, dual, exhaust, f150, ford, inline, kits, motor, parts, performance, plug, spark, turbo, wires

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 01:28 PM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.