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Author Topic:   429 to 460 conversion
Fastback68
Gearhead

Posts: 691
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 04-20-2002 09:29 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Hi all, this is my first time outside the 65-73 forum. My D0VE 429 from a T-Bird is arriving next week and this is going to be my ultimate engine rebuild, if it takes five years. I figure I might as well jump it up to 460, since I understand that is a straightforward conversion, but that's ALL I understand. Can you tell me what is involved? Is there a recommended 429/460 rebuild book I should buy?
Thanks all,
Simon

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SteveLaRiviere
Administrator

Posts: 22411
From: Saco, Maine USA
Registered: May 99

posted 04-22-2002 06:33 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
I'm no big block expert, but I guess it's just a crank swap. The bores and connecting rods are the same.

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

MCA Member # 47773

The secret of success is sincerity. Once you can fake that, you got it made.

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Thud
Gearhead

Posts: 812
From: Cumming,Ga.,USofA
Registered: Jun 99

posted 04-23-2002 06:24 AM     Click Here to See the Profile for Thud     Edit/Delete Message   Reply w/Quote
If you feel like stroking the 429 to 460, why not spring for the crank/rods/pistons kit from FRPP and punch it to 521? (4.36 +.030" bore x 4.3" stroke) It's what I'm gonna put in my Galaxie.

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Laugh at your problems, everybody else does...

Dwayne

M&M Member #18
'94 Lightning #942 of 4007
'70 Mach1
2 '69 Cyclone Spoiler II's
'65 Galaxie 500 + parts car

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Fastback68
Gearhead

Posts: 691
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 04-24-2002 03:24 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
A crank swap sounds straightforward enough, if I can find one in good shape. But a 521 stroker ... gulp! What kind of gas consumption do you hope to get?

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Thud
Gearhead

Posts: 812
From: Cumming,Ga.,USofA
Registered: Jun 99

posted 04-24-2002 06:25 AM     Click Here to See the Profile for Thud     Edit/Delete Message   Reply w/Quote
A good question. I really don't know, but my old '65 with the 390 got 10/11. As of now I'm thinking of putting in a Richmond 5-speed (no overdrive but a really deep first gear; I'll do the "overdriving" with a Sam-type rear axle), so I think it will be liveable for a sunny day toy.

Right now, it's still in the dream stages

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Ryan Wilke
Gearhead

Posts: 633
From: Stanton, Michigan
Registered: Oct 2000

posted 04-26-2002 11:56 AM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
Simon,
The 429/460s share same block casting and bore. The only differences are crank (460 w/ more stroke) and piston ( 460 different pin-to-top distance or compression height). So, all you'll need to change is the crank and pistons and turn a 429 into a 460. Normally, but not always, CJ & SCJ motors are different - such as 4-bolt mains, different valve sizes, combustion chamber size, cyl head port volume/dimensions, etc.

There is a web site that is dedicated to only 429/460 buildups. Check it out at:

www.network54.com/Hide/Forum/85220

GOOD LUCK & KEEP US POSTED ON YOUR PROGRESS!

Ryan

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SteveLaRiviere
Administrator

Posts: 22411
From: Saco, Maine USA
Registered: May 99

posted 04-26-2002 02:18 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
What I think is cool about the 460 is that I was looking up some specs the other day on a '70 429 and I noticed the '70 460 was rated as 360 hp and 500 lbs./ft. of torque!

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'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

MCA Member # 47773

The secret of success is sincerity. Once you can fake that, you got it made.

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Thud
Gearhead

Posts: 812
From: Cumming,Ga.,USofA
Registered: Jun 99

posted 04-29-2002 07:26 AM     Click Here to See the Profile for Thud     Edit/Delete Message   Reply w/Quote
No replacement for displacement...

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Laugh at your problems, everybody else does...

Dwayne

M&M Member #18
'94 Lightning #942 of 4007
'70 Mach1
2 '69 Cyclone Spoiler II's
'65 Galaxie 500 + parts car

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