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Author Topic:   429 swap
project69
Journeyman

Posts: 21
From: Fort Worth, Tx
Registered: Jan 2002

posted 08-11-2002 10:19 PM     Click Here to See the Profile for project69     Edit/Delete Message   Reply w/Quote
has anyone put a 429 in their mustang? was it worth the extra expense over a small block. was planning a stroker 351W but i came across this 429. What to do?

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steve'66
Gearhead

Posts: 4366
From: Sonoma,CA,USA
Registered: Mar 2000

posted 08-11-2002 11:18 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
I haven't done the swap myself, but I've seen plenty of 429/460s in '69 'stangs. Go for it!

SteveW

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indyphil
Journeyman

Posts: 29
From: Lafayette, IN, USA
Registered: Jul 2002

posted 08-12-2002 10:07 AM     Click Here to See the Profile for indyphil   Click Here to Email indyphil     Edit/Delete Message   Reply w/Quote
I dont have anything against big blocks but...
I have heard that they dont handle so well, when compared to the small block due to weight. I guess you already know that the 351W can be stroked pretty big (there are some 427's available but i dont know how tough and durable they are). big block inches in a small block package has to be the ultimate street engine, but its all about your budget. If money is no problem I would choose the stroked windsor, but if this 429 is going cheap and money is tight then go with whats available.

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Fastback68
Gearhead

Posts: 882
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 08-12-2002 11:37 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
A 429 is not just a cheap option. It's one of Ford's finest engines from the muscle car days. I'm building a 1970 engine myself, and wouldn't dream of swapping it for a 351W. That said, 429's do weigh a TON!
I should say, though, that mine's going in a '72. Quite aside from the space issue, I imagine it would affect handling in a '69 more because the engine would be more directly over the front wheels, wouldn't it?

[This message has been edited by Fastback68 (edited 08-12-2002).]

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Slow65Stang
Journeyman

Posts: 97
From: Reading, PA, USA
Registered: Feb 2002

posted 08-12-2002 02:39 PM     Click Here to See the Profile for Slow65Stang   Click Here to Email Slow65Stang     Edit/Delete Message   Reply w/Quote
Good luck with the 429 swap into the 72. My one friend and I just got done doing a 460 into a 73. We had to do some fabrication to make things work and its a TIGHT squeeze to get the header bolts on but it can be done....I strongly suggest shorty headers if you're gonna use the SCJ style heads. IF ya want long tubes we have a set lying around. Ill get back to ya with the name and # of the company that we ordered the shorties from.

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indyphil
Journeyman

Posts: 29
From: Lafayette, IN, USA
Registered: Jul 2002

posted 08-12-2002 03:24 PM     Click Here to See the Profile for indyphil   Click Here to Email indyphil     Edit/Delete Message   Reply w/Quote
Didnt mean to upset anyone who owns a 429, its the way he said he "came across it" like maybe it was sitting in some old barn. I thought he meant extra expense in terms of uprated springs and bellhousing/drivetrain stuff.

I dont know how easily the 69 will handle (or if anyone cares about handling curves anyway)

How much do 429's cost? I knew a guy that had one in a Lincoln (it said 429 on the air filter, is that the same engine?) and he picked the whole car up pretty cheap. I think it was a nasty smog era engine, but thats easy enough to change.

Im a sucker for the lightweight strokers, 450hp Windsor engines seem like such an elegant solution. But then I was born in England where small blocks seem huge.

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Fastback68
Gearhead

Posts: 882
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 08-12-2002 08:27 PM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
You can't pull the old "I was born in England" card on ME, matey I'm from a tiny village called Downe, in Kent. How about you? And I was actually agreeing about the word "cheap" for the 429, compared with the stroker solution. Cheap and highly acceptable, though, not cheap 'n' nasty.
As for putting the 429 in a 72, apart from header issues I know nothing about as yet, will I actually need any luck -- or fabrication? My engine's a Thunderjet, but the dimensions are identical to the Cobra Jets that came in '71s from the factory, aren't they? And yeah, please do get back with any header recommendations.
Simon

[This message has been edited by Fastback68 (edited 08-12-2002).]

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lyle29464
Gearhead

Posts: 523
From: Mt. Pleasant S.C. C. S. A.
Registered: Mar 2000

posted 08-12-2002 09:33 PM     Click Here to See the Profile for lyle29464   Click Here to Email lyle29464     Edit/Delete Message   Reply w/Quote
I just put a 429 in mine. It is all bolt up stuff. The only thing I had to modify was the holes in the crossmember.Their is a great letter in the 385 section of this site
Lyle

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Lyle
69 rag top
93 explorer
98 f 150
several boats

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project69
Journeyman

Posts: 21
From: Fort Worth, Tx
Registered: Jan 2002

posted 08-13-2002 11:52 AM     Click Here to See the Profile for project69     Edit/Delete Message   Reply w/Quote
Thanks for your input. I am still planning the stroker 351W. (427) It is a lot easier to hide cubic inches in a small block. I could probably pawn it off as a 302 with some people. The 429 was just an idea. I need to finish my 65 coupe before I even start on the fastback.

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65 Coupe
69 Fastback
86 GT

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