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How to tell 302 vs 351w

z70what

Bronco Guru
Joined
Oct 28, 2005
Messages
1,022
Loc.
Johnson City
How do you tell the difference from a 351w and a 302 v8 by it's physical appearance??? Anybody know a few key things to look for, so i know?? thanks

Luke
 

natureboy300

Full Member
Joined
Dec 29, 2005
Messages
171
Loc.
livermore
if you look where the distributor goes, the height from the base (pretend the distributor is not in there) to the top rail where the front of the intake manifold seals to, is differant. On a 302 it will be 3/4 of an inch where as the 351 will be about 1-3/4 inches, if you are able to look at them side by side you will be able to see the differance very easily.

NB
 

tabascom16

Sr. Member
Joined
Oct 12, 2003
Messages
526
Loc.
Salisbury, PA
The 351 looks like the 302 just bigger. The deck is about 1 inch taller so the width of the intake manifold is bigger. I think the intake manifold on a 302 is roughly 9" wide while the 351 is 11" wide.
 

daj

Jr. Member
Joined
Nov 7, 2005
Messages
107
Look at the water pump. the 302 and 289 heads are right there and the 351 is about 1 inch higher. That you can see by lifting the hood!.
dj
 

Skuzzlebutt

PhD, Dr. of Broncology
Joined
May 26, 2001
Messages
4,393
Loc.
Honeymoon Bay
Or you could look at the firing order cast on the intake. A 302 will have
1-5-4-2-6-3-7-8. A 351 will be different.
Unless the 302 is a newer H.O, then the order will be the same as the 351, which is different.
 
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