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Author
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Topic: 351w or 302
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My 66 coupe
Journeyman Posts: 41
From: Fort Bragg, NC
Registered: Feb 2004
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posted 02-24-2004 02:38 PM
   
What engine is better a 302 or a 351w? When I say better I mean which is more dependable for street/strip use? What is going to hold up the best?
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SteveLaRiviere
Administrator Posts: 43394
From: Saco, Maine
Registered: May 99
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posted 02-24-2004 02:41 PM
The 351W has a much stronger crank and main webs.Welcome to M&M. ------------------
'70 Mustang Mach 1 351C 4V/FMX/3.25 Open
'70 Mustang Convertible 250 I6/3 speed/2.79 Open
'72 Mustang Sprint Hardtop 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
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indyphil
Gearhead Posts: 2454
From: Senoia, G.A. USA
Registered: Jul 2002
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posted 02-24-2004 03:25 PM
obviously the 351 has more cubes and the block is a little tougher. Most people run what they start with, but also the 351 is a squeeze in a 66 if you plan on using headers. Its not a shoehorn job but the engine is a little bigger because of its deck height and is also therefore a little heavier too (still not exactly a heavy engine by any means)
in the 67,68 body (like my 68) If I had a clean sheet I would go with a 351. My engine bay is bigger and the 351 is the better block to build big power from. I am going the 331 (stroked 302) route because I have a 289 (like a 302) now and want to stick with the stuff I have already got
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'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust http://www.geocities.com/ottouk_77/68mustang.htm
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Jeff
Gearhead Posts: 306
From: Moore, OK USA
Registered: Mar 2001
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posted 02-24-2004 03:30 PM
Depends. Ford lists 302 as 450hp maximum for production replacement blocks. However, you can buy 302 competition blocks with four main bolt caps on #2,3,4 that handle up to 1200 hp. Compare to 351w whose recommended limit is 750hp for all variants.
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hgufrin
Journeyman Posts: 37
From: North Carolina
Registered: Feb 2004
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posted 02-25-2004 07:32 AM
My 66 Coupe,Hands down, 351W for my 66 coupe. I was pleased to hear that you can make a 351 very strong; stud girdles etc. Although, my 351 is still on the stand. Currently have a 289. I plan on stroking it (over 400 ci). The only reservation... I'd like to know if any of you think that rod angularity is a problem; for a city-driver; for longevity?
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66-408-stang
Journeyman Posts: 56
From: lafayette, in usa
Registered: Nov 2000
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posted 02-25-2004 12:24 PM
I have built and run 289, 302, 351w, and now 408w for fun street use in the early chassis mustangs. While the larger motors have a lot more torque, don't dismiss the smaller motors ability or durability. Use the early blocks (pre 73), pay attention to build details, stay out of detonation, and any of them is fun. Look at no2mike to see what you can do on a realistic budget!
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