4bbl swap questions |
Post Reply |
Author | |
Roehm
New Member Joined: 18-October-2005 Location: United States Status: Offline Points: 7 |
Post Options
Thanks(0)
Posted: 24-September-2007 at 8:16AM |
Alright fellas I am swapping the 351W that is in my car from 2bbl to 4bbl. I know the car originally had a 351w 2bbl. Am I going to need to get a different throttle linkage and kick down for the car. I am sure I will need to but any suggestions where I should get one. BTW the car is a 78' Cougar XR7.
Thanks, Dan P.S. I am still working on getting pics yo. |
|
78' Mercury Cougar XR-7 351W/C6
|
|
PatsPOS
Member Joined: 06-April-2004 Location: westcentral PA Status: Offline Points: 101 |
Post Options
Thanks(0)
|
Well, that would depend mostly on the intake you plan on getting. If the carb pad is at stock height, or a little higher, you shouldn't have any problems using your current throttle cable and kickdown. However, if you're planning a hi-rise intake (which you really don't need if you plan on leaving the rest of the engine stock, or close to it), you'll likely need a new throttle cable, and plan on changing your kickdown rod to a cable as well.
I modified a kickdown rod when I put a Weiand Stealth intake on my 460, and while it seems to work well enough, it ain't pretty. Someday I plan on replacing it with a cable. Lokar is the name of choice when it comes to aftermarket cables...first place I would call is Summit Racing, but lots of performance-related places should be able to help.
Pat
|
|
'75 460 Gran Torino Sport (14.04 @ 97 MPH)
'91 Crown Vic (18.09 @ 75 MPH) '89 300 F-150 (18.37 @ 73 MPH) |
|
Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
Post Options
Thanks(0)
|
If you get a performer intake and edelbrock carb, most likely no, it'll be fine. The kickdown rod is easy enough to modify.
|
|
Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
|
Roehm
New Member Joined: 18-October-2005 Location: United States Status: Offline Points: 7 |
Post Options
Thanks(0)
|
I am going to use a stock cast iron intake manifold so I guess everything should work out ok. However I do plan on going to a weiand stealth a little later down the road. Thanks guys I appreciate the info.
Peace, |
|
78' Mercury Cougar XR-7 351W/C6
|
|
Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
Post Options
Thanks(0)
|
A stealth is a little too high end for a stock 351W, IMO.
|
|
Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
|
Roehm
New Member Joined: 18-October-2005 Location: United States Status: Offline Points: 7 |
Post Options
Thanks(0)
|
There will be other parts added before that...such as cam and headers, maybe some other stuff. Ohh btw I looked at some pics of your cougar a while ago Psquare75 and my cougar looks exactly like yours, interior and all. Your is really quiet nice
|
|
78' Mercury Cougar XR-7 351W/C6
|
|
Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
Post Options
Thanks(0)
|
Ah cool, Thanks. I finally took it out last night a little bit after parking it for 4 months... got rid of detonation I was having etc. I won't say I "fear" the car.. more like "respect" the car. farther I press the gas, the harder the car pulls.. I still haven't REALLY tried a WOT run, nor have I just stuff it from a standstill. I think that will just result in a bunch of tire smoke. LOL
|
|
Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
|
Roehm
New Member Joined: 18-October-2005 Location: United States Status: Offline Points: 7 |
Post Options
Thanks(0)
|
With that drive train I can see what you mean.
|
|
78' Mercury Cougar XR-7 351W/C6
|
|
Post Reply | |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |